Email, Spam Control, Blocked for spam error 554 DT

I am getting a bounceback when trying to send/forward email. It always shows 554 DT : SPM

"554 DT:SPM..." is a receiving server error, indicating that it is the content of the message, not our servers, which is getting blocked. Please review your message, especially the subject line, and re-write anything that may sound like a spam message.

This seems to occur with some regularity, but has never indicated that our servers or IP addresses were getting blocked or were on a blacklist. They do have independent error messages for those cases. We have seen these a bunch with 163.com and netease.

Questions


Keywords:
Bounceback 554 DT SPM Spam  
Doc ID:
49036
Owned by:
Email Relays E. in University of Illinois Technology Services
Created:
2015-03-18
Updated:
2020-12-19
Sites:
University of Illinois Technology Services