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#550 Administrative Prohibition##

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#550 Administrative Prohibition## - 13.Jan.2009 12:33:15 PM   


Posts: 7
Joined: 29.Dec.2008
Status: offline
User from other domain complaints that they are unable to send us email, we aare running exchange 2003 wit no complains, other party has exchange 2007 and they are able to send emails to everyone else except us.

Delivery has failed to theserecipients or distribution lists:

An error trying to deliver this msg......
The folllowing organization rejected your message: fw.CCCC.com

Diagnostic informstion fro administrators:

genrating server: mail-server.xxx.local

fw.CCCC.com #550 Administrative prohibition##

Post #: 1
RE: #550 Administrative Prohibition## - 13.Jan.2009 5:24:26 PM   


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

Did you have a 3rd party anti-spam solution or did you configure a blacklist provider ?
It looks like the domain is block by blacklisting or something this will generate a 550 error.


Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to imohisna)
Post #: 2
RE: #550 Administrative Prohibition## - 13.Jan.2009 6:22:44 PM   


Posts: 170
Joined: 23.Oct.2008
Status: offline
Also check if the domains which are recieving this NDR are listed in any of the DNS based email blacklists.

(in reply to jveldh)
Post #: 3

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