Exchange Reputation

Posted on 2009-04-21
Last Modified: 2012-05-06
Exchange Server 2003:

I have a dedicated server at a data center that I terminal services into.  I recently installed Exchange Server 2003 Standard from my licensing.  When the hosting company setup the server the name of the server was "sls-ce10p12" and they had a DNS Suffix of

Well, in doing other things I found this out but AFTER the fact that I promoted this server to a DC to run my Exchange.

I removed the DNS Suffix but the outside is still seeing me at and appliances like Barracuda are rejecting me like so.  How can I fix this?

There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
    < #5.5.0 smtp;554 Service unavailable; Client host [] blocked using Barracuda Reputation;>
Question by:chrisryhal
    LVL 65

    Accepted Solution

    Properties of the SMTP virtual server in ESM.
    ESM, Servers, <your server>, Protocols, SMTP. Right click on the Default SMTP VS and choose Properties, then Delivery, then Advanced. Change the FQDN field. Apply/Ok out.

    Although that will not get you off the Barracuda list, you will need to apply to them directly to get off that.

    LVL 2

    Author Closing Comment

    Awesome.  Changed and confirmed Header based on a test email.  Worked out GREAT!!!  

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