Hosting multiple domains on exchange 2003 RRS feed

  • Question

  •    I have been running exchange for my company for a number of years and can usually sort out most of the problems it throws at me. But just recently I have been asked to add a new domain onto our existing single Exchange 2003 std server as a secondary domain. Our primary email domain which we will call has no problems sending or receiving email internally or externally. Our new secondary domain works fine internally and I can send mail out, but when I try and reply or send a new message in I get the following NDR message,

    This is an automatically generated Delivery Status Notification

    Delivery to the following recipient failed permanently:


    Technical details of permanent failure:
    PERM_FAILURE: SMTP Error (state 9): 550 5.7.1 Unable to relay for

      Now I have added the new domain to the default recipient policy and waited, then rebooted the server, all my exchange users have been updated with a new email address for the new domain. Also I have double checked the DNS entry’s my ISP has added for my new domain and all the relevant A, RDNS and MX records are in place. I would be grateful is someone can shed some light on this problem. 

    Monday, March 12, 2007 12:42 PM

All replies

  • If you did an in-place upgrade from exchange 2000 to exchange 2003 then install dotnet framework 1.1. If any other version or updates of dotnet framework  are installed remove them and then install dotnet framework 1.1
    Tuesday, April 24, 2007 7:16 AM