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5.7.1 Message Refused

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5.7.1 Message Refused - 26.Aug.2009 12:30:58 PM   


Posts: 25
Joined: 3.Jul.2008
Status: offline
Exchange 2007 SP1

My User sends to Recipient & Recipient Receives Message
Recipient Replies & My User Receives Message

When my user replies to that reply the message bounces back with following information:

Servername.recipientsdomain.com #<Servername.recipientsdomain.com #5.7.1 smtp;550 5.7.1 Requested action not taken: message refused> #SMTP#

This is not only happening with this domain, it's also happening with Messagelabs clients but the bounce is different

server-4.tower-120.messagelabs.com #<server-4.tower-120.messagelabs.com #5.0.0 smtp;553-Message filtered. Please see the FAQs section on spam 553-at http://www.messagelabs.com/support/ for more 553 information. (#5.7.1)> #SMTP#

I've read through their support but have had no luck. Also, I am NOT on any Blacklists.

I can provide more information if needed.

Thanks in advance!
Post #: 1
RE: 5.7.1 Message Refused - 26.Aug.2009 2:22:59 PM   


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

Please check the following things:

- is the ptr record in your external DNS correctly
- does the ehlo/helo your send connector send the correct external

Below you will have a link to a website which let's you check your ptr record:


If you need further assistance let me know.


Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to dubbin)
Post #: 2

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