Level 1: Cadet

Outgoing messages rejected as spam

I have recently encountered a problems with Telstra rejecting outgoing messages that contain only an embedded image as spam. I have been able to do this successfully in the past. Messages are composed on Outlook for Microsoft 365 a=on a desktop computer running Windows 10. Forwarded messages do not seem to suffer the same problem.


I have discovered that adding a line of text seems to satisfy the spam filter but is there a better way? Has Telstra's spam filter changed recently? 

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Level 25: The Singularity
Level 25: The Singularity

Re: Outgoing messages rejected as spam

There is no better way. Spam filters change all the time, otherwise they'd be completely useless.

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