Your message did not reach some or all of the intended recipients.

Posted on 2005-04-08
Last Modified: 2012-06-21
Your message did not reach some or all of the intended recipients.

      Subject:      RE: HS-DMX32
      Sent:      4/8/2005 2:22 PM

The following recipient(s) could not be reached: on 4/8/2005 2:23 PM
            There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            < #5.5.0 smtp;553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)>

I keep getting this message, I have telneted to the mail server and I connect.  What can I do?  Is this message a problem with my server or the reciepients server.


Scott Johnston
Question by:sjohnston10
    LVL 18

    Accepted Solution

    The key is the line " sorry, that domain isn't in my list of allowed rcpthosts"  

    For whatever reason, they are filtering incoming mail and you have ended up on one of their blacklists.  Could be that your exchange server was (and perhaps is) an open relay.........or if your mail is going through an ISP, more than likely that the ISP is blacklisted.   I suggest you call this company and find out why you are being blacklisted.

    You can check to see if your exchange server is being used as an open relay at:

    A google on "open relay test" will give you many more sites.

    Spamcop is a good place to start in the hunt to find out if you are blacklisted.

    Author Comment

    I check with the Orbd and found it we are a open relay, and not in any black lists.   Still getting this error with many email, what else can I do.

    LVL 18

    Expert Comment

    Do you mean you are an open relay or you are not?

    You need to contact the people bouncing your email and ask them why they are doing so ....they are the only ones who can cure this problem

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