A client IT person states my server is blocking email messge because settings are tagging their marketing signature as "untrusted" , how do I fix?
Client cannot send me emails they are being bounced back stating undeliverabe
الحل المُختار
If the error comes from the sender's provider server, the sender needs to contact the provider (or IT folks). If the error comes from your server, then you need to check your server set up.
In any case, this has got nothing to do with Thunderbird. The message is coming from a server in between, not Thunderbird.
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What is the exact error message?
554 5.7.1
The entire error message please.
554 5.7.1 The message from (<removed for privacy>) with the subject of (FW: BGC PRICING Fwd: Transmittal 5750007 CN# 62378 93 Ruston) matches a profile the Internet community may consider spam. Please revise your message before resending.
الحل المُختار
If the error comes from the sender's provider server, the sender needs to contact the provider (or IT folks). If the error comes from your server, then you need to check your server set up.
In any case, this has got nothing to do with Thunderbird. The message is coming from a server in between, not Thunderbird.