Error: "550 5.7.1 Message rejected as spam by Content Filtering" after emailing a TechMail address


After sending an email message to a recipient at Texas Tech University (, you receive the following error message in return:

550 5.7.1 Message rejected as spam by Content Filtering. (in reply to end of DATA command)


The message was scored as junk email by TechMail anti-spam features.


See the article Overview of inbound junk email filtering in the TechMail system for information about how junk email filtering works in TechMail and how to help legitimate messages to pass through successfully.


Legitimate messages will reach their intended recipients in TechMail.