Sign in
Microsoft.com
 
Microsoft Forefront codename "Stirling"
 
 
 
Microsoft Forefront codename "Stirling" > Forefront Codename 'Stirling' Forums > Forefront Protection 2010 for Exchange Server > Exchange 2010 and mail deilvery
Ask a questionAsk a question
Search Forums:
 

QuestionExchange 2010 and mail deilvery

  • Tuesday, May 26, 2009 11:41 PMMichael A. BrownMVPUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Sign In to Vote
    0
    Sign In to Vote
    Hi,

    I've got Exchange 2010 Beta 1 setup and routing Internet mail with no issues.  As soon as I install Forefront Beta 2 "Sterling" all incoming mail bounces back with this error message:
    550 5.7.1 :UnknownReturnCode:Client host xx.xx.xx.xx  Has anyone ran into this before?  I've added my internet domain to the list of domains in forefront and restarted all services and even bounced the box but it didn't help.  Uninstalling Forefront and bouncing the box takes fixes the issue.  I'm new to forefront so any help would be appreciated.

    Thanks,
    Mike
     

All Replies