Liste de diffusion Message #15347
De: Warren Michelsen <>
Sujet: Re: 550 error and ECM2
Date: Tue, 12 Sep 2006 06:36:01 -0700
A: Bob Smith <>, SIMS Discussions <>
At 6:34 AM -0500 9/12/06, Bob Smith sent email regarding 550 error and ECM2:

What exactly causes a 550 error?  Is it something specific or is this one of those errors that might mean any of a number things?

The info is in the bounce message:

Failed to deliver your message to
SMTP: Address rejected by host
Host '' says:
550 Sender verify failed is the ECM2 box, correct? It rejected the sender. Probably one of its anti-spam settings. Whatever address you sent it from was rejected.

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