Mailing List Message #97064
From: Jeff Wark <>
Subject: You must authenticate first.
Date: Wed, 14 Jan 2009 12:24:18 -0500
To: CommuniGate Pro Discussions <>

Customer is getting notices that he is exceeding the message sending limit [he is no where close to getting 300 messages out in 1 minute].  So, I told him that since he is on a client IP address, he could stop the SMTP_Auth until we figure it out.  He stopped, but now he is getting another message:

11:53:08.89 4 SMTPI-41629([]) cmd: MAIL FROM: <>
11:53:08.89 1 SMTPI-41629([]) Return-Path '' rejected: You must authenticate first

Obviously, is not his address, but is in our client list.  And the test produces this result:
Test Address:          [] is Trusted

However, the Return-Path is for a domain that does not exist on our server.  I must have changed something to check the return-paths at some point but I can't remember/find it now.  What setting would make it so a customer couldn't relay mail through our server with a return-path not on our server?


Jeff Wark
TBayTel Internet

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