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Troubleshooting outgoing email issues

Update 10/12/2026

In order to combat spam and protect your contacts from email address hacking, sending emails from a particular address may be blocked (SMTPban). This security measure is automatic and does not affect the reception of emails.

 

Email Sending Suspension

If an Infomaniak user's email address sends a large number of messages, this may be the result of an action performed

  1. VOLONTAIRE

  2. or UNINTENTIONALLY (e.g. in the event of the address being hacked)

In both cases, Infomaniak risks being blacklisted by providers such as Microsoft or Gmail, which would affect all customers.

Infomaniak has therefore implemented security measures to limit this risk as much as possible in order to guarantee email deliverability and protect your contacts from unwanted emails.

 

Unblocking emails or securing the account

The legal representative of the organization and the user of the email address are immediately notified by email if emails are blocked; they can then quickly unblock the suspended emails using an unblocking tool, the link to which is in the notification message:

  1. If the email was legitimate, the address will be unblocked, and you will no longer be blocked in the future with similar emails.
  2. Otherwise, you will be guided to change the email address password in order to proceed with the unblocking.

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