Block Spam Relay - Phishing Attack

chincho

Member
Apr 25, 2016
2
0
21
49
Dear Geniuses of pmg.
I am writing to you from a Public University in Argentina. Please I NEED your help!
I have implemented PMG over Zimbra mail, and it works great.
But I have the big problem that users, who are teachers, fall into the Phishing trap. They put their users and passwords in some phishing emails. They give all their identity to the attacker !! The attacker uses our server to relay spam. That causes problems for us, blacklisting blocks.

How is PMG configured to queue spam emails? Can you set any parameters for the number of shipments per minute? How do you solve these problems?

Thank you so much

Translated by google
 
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