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Resolving a "Spam Message Rejected" Error
This guide will help you resolve an issue if you got a message back after sending an email with 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 check
Check that your email did not include:
- words or phrases that are often associated with spam because it could be identified as spam and rejected; check for any unusual indication in the signature, a wrongly worded link (http//.domain.xyz for example) etc.
- an attachment with one of these prohibited 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)
If you need to send a file (e.g. js or exe) and confirmed to be virus-free, store it on your hosting space and link to it (if the file is large and you send it from kMail, it will in any case be placed on a temporary server allowing it to be sent to your correspondent who will in this case receive a download link) or via Swisstransfer.com
Also check your SPF record . If your domain does not have an SPF record or if the record is incorrect, this could result in your message being rejected.
If you believe you are receiving a "Spam Message Rejected" message for no reason, please contact our support .