Content Structure Alert Notification

Question

some of our customers getting a hold on their mail-server on mails senden with limilabs.

"[Postmaster] Content Structure Alert Notification"

the outgoing mail seems okay in other mail-clients.

what should i check and where?

Answer 1

To be honest I'm not sure what the problem might be.

Mail.dll always creates a valid MIME structure, which is properly encoded according to all RFC standards.

Is there any more info associated with this warning?

Do you have a sample email that triggers this kind of warning?

What software is raising this warning?

Comments

1) No, the only info from the receiving receipent mail-server.
2) Yes, i could send a sample EML.
3) Don't know - server not in my hands.

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That's very little information.

Please send us zipped eml (you can find email address in the page footer), maybe this is something obvious.