This guide explains why you might receive an automatic security email regarding your Infomaniak account (= user account).

Preamble

• Warning: fake messages are circulating and imitating the Infomaniak security email.
• If you are unsure about the authenticity of the warning, access the Infomaniak Manager and check recent activity instead of clicking on any potentially malicious link that might be present in the fake message.

Preventive automatic messages

1. Connection from a new location

A security email is automatically sent when a new connection to your Infomaniak account occurs from a new location:

This can happen, for example, if you use your browser's private browsing mode or access your account from a new computer.

2. Connection attempt (wrong password)

A security email is automatically sent when someone enters a wrong password after entering the login email address in the Manager:

View recent activities on the Manager

You can find the recent activities of the platform and configure them in the Infomaniak account settings:

If you notice actions on your Infomaniak account that you do not think you have performed, and/or in case of suspicion of intrusion:

1. Refer to this other guide to quickly secure your tools.
2. Activate two-factor authentication on your account to enhance its protection and ensure that only you receive a unique code authorizing the connection.
3. Change the Manager password.
4. Change the passwords of the email addresses associated with Mail Infomaniak.

This guide explains how to temporarily set aside an email until a specific date/time, this on the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail).

⚠ Available with:

* without customizing the schedule

Preamble

• At maximum 1000 discussions from the inbox only can be snoozed, this up to maximum 1 year (this snooze can be stopped or temporarily modified at any time).
• During this snooze (function snooze, or remind):
  • The discussion is moved to a folder "Pending" visible on the Mail app and on which the number of pending discussions is displayed.
  • If a new message arrives in a snoozed discussion, it will be automatically canceled and the discussion will be visible in the inbox.
• When the deadline arrives:
  • The discussion automatically returns to the inbox, in the first position, with a particular notification.
  • The message, until it is read, will display an indication "Pending since X" (X being the date on which the message returned to the inbox).
• On an email client software like Outlook in IMAP:
  • When you snooze, the conversation will remain in its original place.
  • If you manually move a snoozed message, the functionality for that message is no longer effective on the Web app.
  • When the deadline arrives, the conversation will move to the top like on the Web app and a standard "new message" notification will be displayed.

Temporarily archive an email

Prerequisites

• Enable conversation mode for your email addresses in the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail).

Next, to temporarily hide one of your messages among all your emails and make it reappear in your inbox at a future time you have scheduled:

1. Click here to access the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail).
2. Open the message to snooze later.
3. Click on the action menu ⋮ at the top right
4. Click on the Snooze function.
5. Choose how long the message should disappear from your inbox, among the predefined choices or by customizing the duration:
   
6. Once snoozed, the message appears in a new folder dedicated to snoozed messages.
7. The end date/time of the snooze is displayed next to each of the messages:
   

To enable access to this feature directly from the action bar above an email:

1. Click here to access the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail).
2. Click on the Settings icon ‍‍ at the top right.
3. Click on Customization in the left sidebar.
4. Enable the message snooze feature in the Specific actions on an email section:
   
5. Go back to your message, you will now have the option to snooze it directly from the action bar:
   

To enable access to this feature directly from the list of your messages in the inbox:

1. Click here to access the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail).
2. Click on the Settings icon ‍‍ at the top right.
3. Click on Customization in the left sidebar.
4. Enable the message snooze feature in the Hover actions section:
   
5. Go back to the inbox, you will now have the option to snooze one of your emails directly from the list:
   

This guide explains how to change the first and last name that Infomaniak displays when you are logged into your Infomaniak account (= user account) within an Organization in the Manager, as well as the avatar of your account.

Edit the Infomaniak account details

To edit your personal details:

1. Click here (or on the badge with your initials/avatar in the top right of the Infomaniak Manager) to "Manage my account":
   
2. Click on My profile in the left sidebar.
3. Modify your first name and last name on the right side.
4. You can also specify your date of birth.
5. You can add a profile picture to your Infomaniak account that will replace your initials; it is recommended to import an image of at least 210 pixels on each side:
   

Learn more

• Change the email used as the login identifier for the platform
• Change the phone number

This guide explains how to enable or disable read receipt requests from the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail).

Preamble

• Read receipt requests are compatible with most email systems.
• However, they depend on the user's actions and the settings of their email system.
• The receipt (or non-receipt) of a read receipt does not guarantee anything (the logs may be more suitable for certain cases).

Request a read receipt

To allow your correspondent to easily confirm the successful receipt of your message sent from the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail):

1. Click here to access the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail).
2. Click on the Settings icon in the top right of the interface.
3. Click on Send in the left sidebar.
4. Enable the toggle switch to request a read receipt:
   
5. Click on Filters and rules (in the Email address settings section).

Note that it is also possible to enable it on a case-by-case basis when sending your message on Mail, from the composition options by clicking on ⋮ then on the option in question:

Confirm receipt of the message

If you receive an email and view it on the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail) while its sender has specifically requested to be notified, you can confirm receipt of the message when reading it:

This guide helps you quickly discover the essential functions of Euria, the AI at your disposal within my kSuite, particularly powerful with the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail). The assistant is also available on the mobile app Infomaniak Mail (application for iOS/Android smartphone or tablet).

Prerequisites

• Have an email address in a paid offer.
• Read and understand this other guide about the model used and the responsibilities of each party.

Access the assistant

The writing assistant helps you write a text using AI, on the topic of your choice, including if it must be based on elements present in the ongoing email conversation; use it, for example, to write…

• … a new message that must contain specific elements
• … a response to a received message
• … a rephrasing of a text excerpt
• … correct grammatical syntax
• etc.

To access the writing assistant:

1. Click here to access the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail).
2. Log in with the credentials of your Infomaniak account (and not the password of your email address).
3. If necessary, reattach the email addresses to manage with Mail Infomaniak.

Use Euria for a new message

You can ask Euria to write a text according to your ideas that you will need to convey to it:

1. Click on New message at the top left of the Mail interface.
2. Click on the Euria icon in the editing bar to open the assistant:
   
3. Tell the assistant what you want to write, as if you were conversing with a human.
4. Once the proposal is displayed by the AI, adjust the length, and change the tone if necessary to obtain a more familiar response.
5. Insert the proposal into your message or copy the text to the clipboard.

Use Euria while writing the message

You can also use the writing assistant by selecting a passage from your text in progress, then choosing the desired option from the contextual menu that appears:

• Open the assistant to request suggestions.
• Correct the grammar.
• Rephrase the proposal to obtain a new one.
• Shorten the suggested text by removing some superfluous elements.
• Write more text, wrap the conversation.

Suggest a response with Euria while reading an email

You can launch Euria by consulting a received message to which you want to respond quickly:

1. Select the passage on which to base the response with the mouse.
2. Choose to respond with Euria in the contextual menu that appears.
3. Indicate to the assistant what you want to respond, as if you were conversing with a human.
4. Insert the proposal that will appear in the automatically composed response message:
   
5. All you have to do is read it and send it.

Suggest the subject of the email with Euria

When you start writing a new message, the assistant can take care of entering a title suitable for your message in the Subject field:

1. Enter text.
2. Click on the Euria icon to the right of the Subject field:
   
3. Insert the proposal if it suits you:
   • If a subject is already entered in the field (for example, because you have inserted a new message + subject composed by the assistant and then asked the assistant for a new message), the assistant will suggest replacing it with a more appropriate object.

Disable the assistant

You can adjust the elements (translations / Euria) that appear when you click on your message:

1. Click here to access the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail).
2. Click on the Settings icon in the top right of the interface.
3. Click on Customization in the left sidebar.
4. Check or uncheck the actions you want to have on click:
   

This guide will help you resolve an issue if you received, after sending an email, a message containing the failure reason "Spam Message Rejected" or "5.7.0 AV: Message is rejected by headers rule filter.. 554 Please check the message and try again"...

Must be checked

Check that your email did not contain:

• words or phrases that are often associated with spam, as it could be identified as unwanted and rejected
• any unusual indication in the signature, a link formulated incorrectly (http//.domain.xyz for example), etc.
• an attachment with one of these forbidden extensions: .exe, .com, .cmd, .cpl, .hta, .scf, .sct, .lnk, .bat, .js, .jse, .wsh, .ws, .wsf, .wsc, .vbe, .vb, .vbs, .shs, .pif, .scr... including inside a compressed file (.zip for example)

To send a file (js or exe for example) and confirm that it is virus-free, store it on your hosting space and create a link to it (if the file is large and you are sending it from the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail), it will be placed on a temporary server allowing it to be sent to your correspondent who will receive a download link in this case) or via Swisstransfer.com.

Also check your SPF record. If your domain does not have an SPF record or if this record is incorrect, this will very likely result in the rejection of your message.

If you believe you are receiving a "Spam Message Rejected" message without reason, contact Infomaniak support.

This guide explains why some attachments sent from Microsoft Outlook arrive in winmail.dat format on your email address hosted by Infomaniak, and how to permanently resolve the issue on the sender's side (where it originates).

Preamble

• winmail.dat is the container used by Outlook/Exchange when a message is sent in RTF / TNEF.
  • It encapsulates the formatting and attachments.
• Many non-Microsoft email clients do not know how to interpret TNEF:
  • The formatting disappears and the attachments become a single winmail.dat file.

Solving the problem (actions to request from the sender)

The most effective solution is to modify the Outlook configuration on the sender's side.

Disable RTF/TNEF and resend the message in HTML or plain text

• Classic Outlook for Windows (Microsoft 365/2021/2019, Win32 application)
  Menu: File > Options > Mail
  Composition: Compose messages in this format: choose HTML (or Plain Text).
  Message format: in When sending messages in Rich Text format to Internet recipients, select Convert to HTML (or Convert to Plain Text).
  Case by case (a single email): in the message window, tab Text Format > choose HTML.

• New Outlook for Windows (Outlook on the Web-based application)
  Menu: Settings (gear icon) > Mail > Compose and reply
  Message format: Compose messages in: choose HTML (or Plain Text).
  This client does not expose an RTF option; sending in HTML/text avoids winmail.dat.

• Outlook on the Web (Exchange Online/Outlook.com)
  Menu: Settings > Mail > Compose and reply > Message format > choose HTML (or Plain Text).

• Outlook for Mac
  Menu: Outlook > Preferences > Composition > check/uncheck Compose messages in HTML by default.
  For a single message: in the composition window, tab Options > switch to HTML or Plain Text.

Notes: if the sender has attached files, they will be readable by all recipients as long as the message is sent in HTML/text. Zipping the attachments (.zip) does not prevent Outlook from encapsulating the message if RTF/TNEF is still active.

Disable RTF for specific recipients (you, for example)

• Classic Outlook Windows: open the Contact card > double-click the email address > Outlook Properties > Internet Format: select Send as plain text only (or Let Outlook decide if the admin already forces the conversion).

• Clear the auto-completion (it may “remember” RTF for a recipient): File > Options > Mail > Send messages > Empty the Auto-Complete List, then retype the address manually for the next send.

• Microsoft 365 administrators (at the sender's): in the Exchange Admin Center: Mail flow > Remote domains > Default > Rich Text format: choose Never. In PowerShell: Set-RemoteDomain Default -TNEFEnabled $false.

Failing that: use another client to send (e.g., Thunderbird), or check that Calendar invitations are sent in iCalendar (File > Options > Calendar > enable Use iCalendar format for external recipients).

If you do not wish to recontact the sender

You can extract the content of winmail.dat with TNEF decoding tools (online or desktop applications). Search for “open winmail.dat” and choose a reputable tool for your system (Windows, macOS, Linux). This usually restores the attachments, but it is not a lasting fix. Moreover, privacy and security are in no way guaranteed during these operations.

This guide helps you find the public IP address of your device, which can be useful for certain support requests, among other things.

Display the public IP address on the connected device

Click here to obtain the public IP address of your device in IPv4 and IPv6 format.

Alternative methods

Visit ipinfo.io or ifconfig.me.

... on macOS

1. From a Terminal type application (command-line interface, CLI / Command Line Interface) on your device, run the command curl ifconfig.me and press enter.
2. The displayed address is the public IP address of the computer.

To automate the search for the public IP address, use commands or scripts that query services such as api.ipify.org ...

This guide explains how to connect the mobile app Microsoft Outlook (app for smartphone or tablet iOS / Android) to an email address hosted by Infomaniak.

Preamble

• The app Outlook Lite is not compatible with the IMAP protocol… Only install the version offered above.
• Instead of the manual configuration below, it is recommended to use the app Infomaniak Mail (iOS / Android).
• The various services offered by Infomaniak are all compatible with the corresponding standard protocols (IMAP/SMTP for email, for example), therefore if you encounter a problem with third-party software, contact its publisher or a Partner and consult the support policy as well as article 11.9 of the Infomaniak Terms of Service.

Add the email address to the application

Prerequisites

• Create the email address in my kSuite or a Mail Service / kSuite.
• Create a password for the email address for the device you are going to configure.

To configure the email application:

1. Open the application.
2. Click on Add an account:
   
3. Enter the email address to be linked.
4. Click on Continue:
   
5. Click on IMAP:
   
6. Check and complete the missing information.
7. Click on the icon ✓ at the top right:
   
8. Click on the left to complete the configuration:
   
9. That's it, your email address is now configured in the application:
   

Recommended settings

• Incoming IMAP server = mail.infomaniak.com
• IMAP port = 993 (with SSL)
• Outgoing SMTP server = mail.infomaniak.com
• SMTP port & encryption protocol and command/method to activate this protocol: 587 + STARTTLS
• Username = full & complete email address ( ? )
• Password = the one generated for the email address you want to access
• Authentication required to send emails:
  • It is activated in the SMTP settings of your application.
  • Check "use the same parameters as the incoming server" or depending on the software/email clients, enter a username (= full & complete email address) and the generated password.

Refer to this other guide if you are looking for information about other compatible messaging ports and protocols (SSL / TLS for example).

In case of problem

Check that the Mail Service is configured optimally.

There is no need to contact Infomaniak Support if your email address works well outside the application. The most common error concerns the use of an incorrect password. The troubleshooting guides help you resolve any potential issues:

• Refer to the solutions given in this other guide regarding email in general.
• This other guide is more specifically about Outlook.

… and if your Outlook no longer works since a change of email password, refer to this other guide.

This guide details the security measures implemented as part of the Infomaniak email offers to detect abusive and abnormal use of an email address. These measures protect you from malicious use of your computer or your account.

Number of recipients per email

Regardless of the email offer chosen, whether it is free or paid, the total number of recipients per message is limited to 100.

This restriction applies regardless of the field used to insert the email addresses of the recipients (To, CC, or BCC).

Other email limits

• Outgoing email limits per 24 hours
• Email size limits

This guide explains how to manage the password of an email address from the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail).

Preamble

• If you cannot log in to Mail / my kSuite, you will not be able to manage the passwords of any email addresses: refer to this other guide in this case.
• You need to determine what you want to do specifically and for what purpose:
  1. obtain a password to add the address to a device, an external application, etc.
  2. obtain a password so that a third-party user can add the address to their Infomaniak Web app Mail
  3. remove an address currently visible in the Infomaniak Web app Mail from a third-party user

Cases 1 & 2

Prerequisites

• Have permission to manage the password: it is possible that the Mail Service manager has removed this right from their admin account.

To manage the password of an already linked email address:

1. Click here to access the Infomaniak Web app Mail (online service ksuite.infomaniak.com/mail).
2. Click on the action menu ⋮ to the right of the email address concerned.
3. Click on Address settings:
   
4. Click on Manage the password:
   
5. Click on Add a device:
   
6. The setup assistant opens on the MAIL section; check or select the email address concerned in the dropdown menu.
7. Select “new device” from the dropdown menu.
8. Give a description to the device.
9. Click on the Manual configuration tab.
10. Click the button to generate a password:
    
11. Enter the password to log in to your Infomaniak account if prompted.
12. The new created password is displayed, you can copy it and keep it safe (password manager, for example); it will no longer be displayed afterwards.

Case 1 & 2 & 3

At any time, it is possible to manage the accesses created / used:

1. Click on the Settings icon ‍ at the top right of the interface.
2. Check or select the email address concerned in the dropdown menu of the left sidebar.
3. Click on Devices in the left sidebar.
4. Click on the device concerned:
   
5. Click the button to disconnect the device.
6. Confirm the disconnection of the device concerned:
   

This guide details the differences between the IMAP and POP3 protocols on an email software/client (Outlook, Microsoft 365, Thunderbird, Apple Mail, eM Client, etc.) and explains why it is crucial not to use them simultaneously for the same email address managed by Infomaniak.

IMAP (recommended)

IMAP is the synchronization protocol. Messages remain on the server and can be accessed from anywhere.

• Multi-device access: your emails are synchronized between your computer, your smartphone and the Infomaniak Web Mail app.
• Collaborative work: ideal for shared mailboxes. If a user moves or deletes a message, the change is visible to everyone.
• Security: in case of a computer failure, your messages remain saved on the server.

POP3 (specific use)

POP3 is a download protocol. Messages are retrieved on your computer and usually deleted from the server.

• Offline consultation: messages are stored locally on your hard drive.
• Major drawback: once downloaded, messages are no longer visible on the Infomaniak Web Mail app or on your other devices.
• Risks: if you use the option "keep a copy of messages on the server", you risk duplicate downloads and synchronization errors.

Important: never mix POP and IMAP

Using these two protocols simultaneously for the same address causes major technical conflicts:

• Unexplained disappearance of messages on some devices.
• Repeated downloads of old messages already read (especially on Outlook).
• Unnecessary saturation of storage space.

Tip: favor the use of IMAP on all your email software/clients.

Refer to these other guides to configure an IMAP account or to switch from POP to IMAP.

This guide details the priority actions to take if you do not see any difference between your website after a change you have made to it, and its previous version. These tips are also valid if you encounter issues while using the Infomaniak product interface.

Preamble

• During your browsing, a web browser saves the data consulted in a reserved space, in order to avoid requesting the data already consulted from the server again, to save time and resources.
• Your cache may contain a lot of data and sometimes the browser gets confused. Sites may then display incorrectly or display an outdated version.
• Clearing the cache ensures that you have the very latest version of the page or folder consulted.

Clear the web browser cache …

… on Safari

Choose your macOS version to view the corresponding Apple help.

… on Google tools (Chrome, Android, etc.)

View the Google help.

… on Firefox

View the Mozilla help.

… on Edge / Internet Explorer

View the Microsoft help.

This guide explains how to copy the content of one or more email addresses from other providers to one or more email accounts managed by Infomaniak, using the Infomaniak import tool!

Preamble

• The entirety of the external mailbox will be imported.
• Once the import process has started, it is no longer possible to interrupt it.
• A confirmation email is sent once the copy is complete.
• Duplicate removal (in case of successive imports) is managed.
• It is also possible to copy the content already on an email address for which Infomaniak is the provider (@ik.me for example).

Copy emails from another provider to Infomaniak

Prerequisites

• Order a Mail Service from Infomaniak.
• Create one or more addresses on this Mail Service.
• The email address whose content must be copied must have been used (or be compatible) with the IMAP protocol.
• The email address to which the content must be copied must be among the addresses attached to the Infomaniak Web App Mail (online service ksuite.infomaniak.com/mail); if it is not listed, the drop-down menu (see point 9 below) will not offer this address.
  • This is not a prerequisite for bulk import (detailed .csv file) at the bottom of this guide.

Then, click on the link corresponding to the provider of the email to be imported:

• addresses @ Bluewin
• addresses @ Gmail (or address @ custom domain Google)
• addresses @ GMX
• addresses @ custom domain Microsoft 365
• addresses @ custom domain Swisscom
• addresses @ Yahoo

Guide for any other mail provider type Gandi, Hotmail, Hostinger, Sunrise, etc:

1. Click here to access the Infomaniak import tool (online service https://import-email.infomaniak.com).
   
2. Log in if you haven't already to your Infomaniak account on the Organization of your choice (the import will be to an email address linked to the Infomaniak Mail interface of the account you are using).
3. Click on single import on the left.
4. Fill in the left field with your starting email address (whose content is to be copied).
5. Fill in the right field with the password of the same email address.
6. Modify if necessary the Advanced settings to specify an IMAP server address.
7. Click on Confirm:
   
8. Enter if necessary a second email address to be imported at the same time.
9. Choose which email address to import emails to; the drop-down menu lists the email addresses currently linked to your Infomaniak Mail interface of the Infomaniak account you are logged in to (read the prerequisites above)
   
10. After selecting the desired destination address from the list, click the blue Import emails button.
11. The copy starts and continues in the background, you can close the window that appears; a confirmation email will be automatically sent to all email addresses concerned by the operation once the import is complete, mentioning the number of messages copied.

Retrieve the content of multiple email addresses in bulk

To import the content of multiple email addresses (maximum 25 at a time):

1. Click here to access the bulk import tool (online service https://import-email.infomaniak.com).
2. Select Import multiple email addresses from a CSV file (format .csv).
3. Download the example CSV template to create one with the necessary information for the copy.
4. Upload the file using the Select a CSV file button:
   
5. Once the file is uploaded to the tool's page, select Import email address.
6. Wait while the address content is being copied (a confirmation email is sent once the copy is complete).

This guide explains how to connect the desktop app Outlook 2007 (desktop application on Windows) to an email address hosted by Infomaniak.

Preamble

• The various services offered by Infomaniak are all compatible with the corresponding standard protocols (IMAP/SMTP for email, for example), therefore if you encounter a problem with third-party software, contact its publisher or a Partner and consult the support policy as well as article 11.9 of the Infomaniak Terms of Service.

Add the email address to the application

Prerequisites

• Create the email address in my kSuite or a Mail Service / kSuite.
• Create a password for the email address on the device you are going to configure.

To configure the email application:

1. Open the application.
2. Click on the Tools menu.
3. Click on Options:
4. Click on the Email Configuration tab.
5. Click on Email Accounts...:
6. Click on New:
7. Click on Configure manually.
8. Click on Next:
9. Click on the Internet E-mail button to connect to an IMAP server.
10. Click on Next:
11. Check and complete the missing information.
12. Click on Additional settings:
    
13. Click on the Outgoing server tab.
14. Click on My outgoing server requires authentication.
15. Click on the Advanced tab:
    
16. Replace the port numbers with the correct information and enable SSL.
17. Click on OK:
    
18. Click on Next:
    
19. Click on Finish:
    
20. Click on Close:
    
21. Your email address is now configured in the application:
    

Recommended settings

• Incoming IMAP server = mail.infomaniak.com
• IMAP port = 993 (with SSL)
• Outgoing SMTP server = mail.infomaniak.com
• SMTP port & encryption protocol and command/method to activate this protocol: 587 + STARTTLS
• Username = full & complete email address ( ? )
• Password = the one generated for the email address you want to view
• Authentication required for sending emails:
  • It is activated in the SMTP settings of your application.
  • Check "use the same settings as the incoming server" or, depending on the software/email clients, enter a username (= full & complete email address) and the generated password.

Refer to this other guide if you are looking for information about other mail ports and protocols compatible (SSL / TLS for example).

In case of a problem

Check that the Mail Service is configured optimally.

It is not necessary to contact Infomaniak Support if your email address works well outside the application. The most common error concerns the use of an incorrect password. The troubleshooting guides help you resolve any potential issues:

• Refer to the solutions provided in this other guide regarding mail in general.
• This other guide is more specifically about Outlook.

… and if your Outlook no longer works since a change of mail password, refer to this other guide.

This guide helps you identify and correct most email errors encountered after sending an email to a recipient. Refer to this other guide if you are looking for information about errors obtained when configuring an email address in a software/email client.

Preamble

• In general, a mail error message follows…
  • … an incorrect configuration of the domain name used with your email,
  • … a problem with (the mail provider of) your recipient.
• In all cases, a delivery failure report (Mailer Daemon or Mail Delivery Subsystem) containing the explanation is sent to the sender.

Finding and identifying the email error

When your message does not reach your recipient, an initial failure report (Temporary Delivery Failure Report) is sent and specifies that the server will attempt to resend your message several times.

A final delivery failure report (Final Delivery Failure Report or Undeliverable Mail) issued by the recipient's server is sent to the sender (via a pass through the Infomaniak mail server, hence the mention of Infomaniak at the beginning of most error messages you may receive) to inform that the email could not be delivered even after several attempts.

The notification always contains the reason for the failure. Example below:

This is the mail system at host smtp-1-1234.mail.infomaniak.ch.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The mail system anna.a@abc.xyz: host mxbw-abc-xyz.abc-ab12.abc.ch[123.456.789.00] said: 550 5.1.1
anna.a@abc.xyz recipient rejected, account administratively disabled (in reply to RCPT TO command) 

So here the address of your correspondent is apparently suspended by their email provider (account administratively disabled).

Sometimes you need to look for the reason for the error message received among its attachments (often a plain text file). Example:

Reporting-MTA: dns; mxbw.abc.ch‍ [123.456.789.00]
Received-From-MTA: dns; smtp-1-1234.mail.infomaniak.ch [12.345.678.99]
Arrival-Date: Tue, 01 Aug 2023 15:49:22 +0200
Final-recipient: rfc822; anna.a@abc.xyz
Diagnostic-Code: smtp; 552 RCPT TO:anna.a@abc.xyz‍ Mailbox disk quota exceeded
Last-attempt-Date: Tue, 01 Aug 2023 15:49:22 +0200

Here the mailbox of your correspondent outside Infomaniak seems full (Mailbox disk quota exceeded).

Most common cases

SPF Failure

The SPF (Sender Policy Framework) record is not correctly configured:

Subject: Delivery Status Notification (Failure)
From: Mail Delivery System mailer-daemon@domain.xyz
To: Anna.A anna.a@abc.xyz
This is an automatically generated Delivery Status Notification.
Delivery to the following recipient failed due to SPF failure:
anna.a@abc.xyz
Technical details of SPF failure:
The sender's domain domain.xyz does not have a valid SPF record. Please contact your email administrator to correct the SPF configuration.

Solution: check the configuration of your domain name and especially the SPF type record if your website is hosted on Wix or another provider.

User Unknown

The email address specified in the message is invalid or does not exist:

Subject: Delivery Status Notification (Failure)
From: Mail Delivery System mailer-daemon@domain.xyz
To: Anna.A anna.a@abc.xyz
This is an automatically generated Delivery Status Notification.
Delivery to the following recipient failed permanently:
anna.a@abc.xyz
Technical details of permanent failure:
The email address does not exist. Please check the recipient's email address and try again.

Solution: carefully check the recipient's email address and correct it if necessary; make sure to use a valid email address for the recipient.

Temporary Failure

Le serveur de messagerie du destinataire rencontre des problèmes temporaires ou est indisponible.

Solution: wait for a certain amount of time, then try sending the message again later. If the problem persists, contact the recipient's technical support for assistance.

Blocked by SPAM Filter (or Content Rejected)

The recipient's mail server has blocked the message due to anti-spam filtering rules:

Subject: Delivery Status Notification (Failure)
From: Mail Delivery System mailer-daemon@domain.xyz
To: Anna.A anna.a@domain.xyz
This is an automatically generated Delivery Status Notification.
Delivery to the following recipient failed due to the message being rejected as spam:
anna.a@domain.xyz
Technical details of delivery failure:
The content of the message triggered the spam filters of the recipient's email server. Please review the message content and try again.

Solution: check if your message contains elements that may be considered spam (keywords, suspicious links, etc.). Contact the recipient to verify if the message was filtered into the spam folder.

Refer to this other guide regarding outgoing spam and this other guide regarding incoming spam.

Bad Reputation

The recipient's mail server has blocked the message due to anti-spam filtering rules:

gmail-smtp-in.l.google.com said: 550-5.7.1
Our system has detected that this message is likely suspicious due to the very low reputation of the sending domain.
To best protect our users from spam, the message has been blocked.
Please visit https://support.google.com/mail/answer/188131 for more information.

Solution: check the reputation of the domain, determine if one of your email addresses has been recently exploited for malicious purposes, for example.

Domain Not Found (or DNS Error)

Le nom de domaine du destinataire n'a pas pu être résolu ou n'existe pas.

Solution: check the spelling of the recipient's domain and correct it if necessary; ensure that the domain name and DNS are valid and active.

Mailbox Full

La boîte de réception du destinataire est pleine, empêchant la réception de nouveaux messages.

Solution: inform the recipient of the situation and ask them to free up space by deleting emails or archiving items.

This cannot happen with email addresses managed by Infomaniak since they do not have storage size limits.

Part of their network is on our block list

If the error message (obtained in principle following a send operation performed from an online tool, placed on the server where your website is located, for example a Prestashop order confirmation or other online store you manage) contains this:

host hotmail-com.olc.protection.outlook.com[104.47.30.97] said: 550 5.7.1
Unfortunately, messages from [89.123.456.789] weren't sent. Please contact your Internet service provider since part of their network is on our block list.

Solution: change the email sending method. The sending is unauthenticated and comes from the server with a specific IP address that is apparently blocked by the recipient for some reason (Infomaniak does not intervene to request unblocking). Therefore, you need to configure the online tool to perform authenticated sends.

Less Frequent Errors

Deferred - Delayed

The error message Deferred - Delayed - Warning: message still undelivered after 4 hours, Will keep trying until message is 3 days old means that the Infomaniak mail server tried to connect to your correspondent's mail server to send the message but failed for an undetermined reason. This error message specifies that the Infomaniak server will continue to attempt to send your message during the period specified in the error message. If, after this delay, the message has still not been delivered, you will receive a final error message informing you that your message could not be delivered and that your correspondent did not receive it.

Greylisting Delay

This error Greylisting Delay occurs when the recipient's mail server, like Infomaniak, uses a technique called "greylisting" which imposes a temporary delay on the first attempt to deliver a message from an unknown sender. The Mailer Daemon may eventually send an error report indicating that delivery has been delayed due to greylisting. The error may also mention banned sender. You should try sending your message again a few minutes/hours later.

Malware message rejected

This error Malware message rejected occurs when the message contains an attachment, a link to a storage site like Dropbox, or dynamic content, including in the "forwarded" part of the message (in the case of a message "forward", for example). You should try resending the message from the Infomaniak Mail Web app (online service mail.infomaniak.com) instead of a mail application, and remove any content that may cause this error.

Message Size Exceeded / File Too Large

These errors Message Size Exceeded / File Too Large occur when the size of the message (or attachments) exceeds the limit allowed by the recipient's mail server. The Mailer Daemon will return an error report indicating that delivery failed due to the message size being exceeded.

Rate Limit Exceeded

This error Rate Limit Exceeded occurs when the sender has exceeded the frequency or volume limit allowed by the recipient's mail server. Mail servers may impose limits to prevent spam or system overload.

Sender denied: auth guards failed

Refer to this other guide if you encounter an error Sender denied: auth guards failed.

The message contains a unicode character in a disallowed header

This error The message contains a unicode character in a disallowed header may appear if you have inserted a special character like a heart ♥, for example, in the body of the email, the subject, or especially in the full name; the risk of being rejected by providers is very high: it is best to keep the use of signs, characters, and fonts as simple as possible.

This guide explains how to delete folders that appear grayed out in the Web app Mail Infomaniak (online service ksuite.infomaniak.com/mail) or in some email software/clients such as Apple Mail, Mozilla Thunderbird, or Microsoft Outlook.

Ghost folders

Some email software/clients like Microsoft Outlook allow you to create subfolders of non-existent folders. For example, it is possible to create the folder /abc/klm/xyz while the folder "klm" does not exist.

On Mail Infomaniak or in other software, ghost folders like the folder "klm" appear in gray and cannot be deleted directly as they are only "paths" to a real subfolder.

To delete these ghost folders, it is necessary to delete their subfolders first (in this example: xyz).

Stubborn folders

If, when consulting your Infomaniak email address on Outlook, ghost folders persist or reappear instantly after deletion, here are the technical procedures recommended by Microsoft to force synchronization:

1. Force Outlook folders reset

Sometimes, Outlook's local folder table is corrupted. A simple command can often fix this without deleting anything:

• Close Outlook completely.
• Press the Windows + R keys on your keyboard.
• Type outlook.exe /resetfolders and validate (this restores missing or corrupted folders from the server).

2. Reset the IMAP cache (.ost)

If the problem persists, forcing Outlook to rebuild its local database is often the most effective solution:

• Close Outlook.
• Access the folder: C:\Users\[Your Username]\AppData\Local\Microsoft\Outlook.
• Identify the .ost file with the name of your Infomaniak address and delete it (or rename it to .old for safety).
• Restart Outlook. The software will redownload all your messages and folders properly from the Infomaniak servers.

3. Use the MFCMAPI tool (Advanced Level)

MFCMAPI allows you to access the MAPI structure of your mailbox directly to delete what the standard Outlook interface refuses to touch:

• Download the latest version of MFCMAPI from GitHub (Official Source).
• Launch MFCMAPI.exe and go to Session > Logon. Select your Outlook profile.
• Double-click on your Infomaniak mail account in the list.
• In the new window, expand Root Container (or Root - Mailbox), then IPM_SUBTREE.
• Locate the problematic folder. Right-click and select Delete folder.
• Warning: In the dialog box, try simple deletion first. If this fails, retry by checking DELETE_HARD_DELETE (permanent deletion at the server level).

4. Final verification via Webmail

If a folder is deleted in Outlook but keeps reappearing, check on the Infomaniak Web Mail app if the folder is present, and delete it first via the Web interface, then apply step #1 (resetfolders) in Outlook.

This guide explains how to authorize Infomaniak Support to access your online products and more specifically their content, and provide useful details when requesting assistance.

Preamble

• Infomaniak Support may ask you to grant temporary access to part of your content.
• This access is strictly limited to the analysis context and is used solely to identify the source of the problem encountered.
• It saves time in diagnosing by avoiding unnecessary back and forth.
• In accordance with Infomaniak's privacy policy, your data will never be used for other purposes.

Authorize Support to access a type of content

To authorize Infomaniak to access a specific part of your services (authorizing access to content never opens access to others; each authorization is specific and independent):

1. Click here to access the management of accesses on the Infomaniak Manager.
2. Click on the toggle switch to authorize access to the content of…
   
   1. … email addresses linked to the Web Mail app Infomaniak (online service ksuite.infomaniak.com/mail).
   2. … folders among the kDrive(s) existing in the Organizations of which the current user is a part.
   3. … discussions among the kChat product(s) existing in the Organizations of which the current user is a part.

With my kSuite+, you can also do this by clicking here or proceed as follows to get there:

1. Click on the Settings icon ‍ at the top right of your my kSuite+ window.
2. Click on Support in the left sidebar:
   

Who can access it?

• Only Infomaniak employees handling your support request directly.
• Access is only from Infomaniak's controlled facilities.

Duration and control of access

• You can revoke this access at any time.
• Otherwise, it expires automatically after 7 days.

Taking screenshots…

… on Windows

Microsoft provides a software pre-installed for screenshots. But to do it manually:

1. Display what you want/need to send on the screen.
2. Press the PRINTSCREEN key on your keyboard (or PRTSCR, IMPR. ECRAN, etc.) once.
3. In Microsoft Word (or similar), do "Edit" -> "Paste" to place your image on the page.
4. Save your file.
5. Repeat the operation from step 1 to step 5 as many times as the number of desired screenshots.

… on macOS

1. Press the keys "CMD" + "shift" (the hollow arrow up — shift) + the key "3".
2. Each press on these keys creates an image file on your computer's desktop.

… on iOS (iPhone, iPad...)

1. Press the buttons "Power" + "Home" (the only two physical buttons) simultaneously.
2. Retrieve the screenshots in the "Photos" app on your device.

… on Android (e.g., Samsung, LG, or Huawei)

1. Press the "Volume Down" key (on the side) and the lock key simultaneously.
2. The captured image is automatically saved in a Screenshots folder in the gallery.

Windows Popup

To copy-paste an error message present in a Windows popup as text, simply press the CTRL + C key on your keyboard to copy the message to the clipboard. You can then paste it (CTRL + V) into the body of the message you send us.

Browser Javascript console…

… on Windows

Chrome, Firefox and Safari: enter the key combination CTRL + SHIFT + i
Internet Explorer and Edge: press the F12 key

… on macOS

Chrome: enter the key combination ⌘ + ⌥ + J
Safari: enter the key combination ⌘ + ⌥ + C

1. Then, click on the crossed-out circle icon or similar to reset the log.
2. Display the page of your site affected by the issue.
3. The console tab displays JavaScript errors and missing online resources.

This guide explains what the external mail notice, "External" means, which appears on the Web app Mail (online service ksuite.infomaniak.com/mail) and the mobile app Infomaniak Mail (application for iOS / Android smartphone or tablet) when reading certain messages:

External mail notice

The external mail notice appears in the following cases:

• The sender's domain name (or alias) does not match the one configured in Mail.
• The sender is not part of the contacts (including suggested contacts).
• The email comes from an address hosted outside the Organization.

The notice will appear as unknowninstead of “ external” with some free offers like my kSuite.

Enable or disable the notice

You can enable or disable the notice, the effect is immediate for incoming emails and in the case of a response to an external email. To do this:

1. Click here to access the management of your Mail Service on the Infomaniak Manager (need help?).
2. Click directly on the name assigned to the Mail Service concerned:
   
3. Click on Global Configuration in the left sidebar:
   
4. Click on the Security tab.
5. Enable or disable the toggle switch: