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ndr to select external addys

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ndr to select external addys - 23.Jul.2009 1:28:03 PM

bitsnet

Posts: 5
Joined: 23.Jul.2009
Status: offline

Hi. Im working with a sbs 2003. The mail has been running smoothly until now. I am getting select NDR's on sending to an external email address.

<mail.gofigure.com #5.5.0 smtp;550-Verification failed for <bill@gofigure.com>>

This is limited to only a few external email addys. The above ndr is for the sender within the domain. It comes back automatically. Any ideas?

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RE: ndr to select external addys - 27.Jul.2009 10:07:10 AM

jveldh

Posts: 2335
Joined: 12.Apr.2008
From: The Netherlands
Status: offline

Hi,

Propably they will use SPF as anti-spam solution. This solution will check if the sending mailserver is authorized to send as your domain. Please check if SPF is configured correctly and enable smtp logging to get more information, see the article below on how to enable it:

http://support.microsoft.com/kb/821910

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(in reply to bitsnet)

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