Announcement

Collapse
No announcement yet.

NDR 550 MX record

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • NDR 550 MX record

    Hello all,
    I have a user getting the following error:

    the following recipient(s) could not be reached:

    use(at)companyA(dot)com on 2/26/2009
    thier was a SMTP communicatioons problem with the reciepants emial server. Please contact your sys admin.
    (server.domain.com # 5.5.0 smtp, 550 MX records inaccessible for too long for domain companyA (dot)com -psmtp

    I have trced the email and i can see it leaving my mail server then being transfered to postini( hardware applicance spam).
    I checked our mx record and all is ok, i am able to communicate to thier email server, telnet, commands ehlo. any ideas what might be the issue?

    Our exchange server is 2003 sp1

    ThanksJK
    Last edited by jknipper; 26th February 2009, 23:05. Reason: spelling

  • #2
    Re: NDR 550 MX record

    Any reason you are on Exchange 2003 Sp1?

    Who is company A? You or the recipient? It isn't clear.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

    Comment


    • #3
      Re: NDR 550 MX record

      Company A is the reciepant,
      We have chose not to upgrade to sp2 for exchange as of yet this was handed down from upper management, not my decsion.
      It turns out last night after i left another user in our company had the same issue to a different person at the company A ( the reciepant) so it appears to be on thier end and not ours. I am going to trace this new user issue like i did the first one through the tools message tracking tools and see were it leads too, but i am assuming its on comany A's (The reciepnat) end.

      thanks
      JK

      Comment


      • #4
        Re: NDR 550 MX record

        Exchange 2003 SP2 has been available for over three years, and is considered rock solid.
        If you want to use support Internet Explorer 7 or higher for OWA then you must have SP2.

        Service Packs are not really optional.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

        Comment

        Working...
        X