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  • Problem sending email to some domains.

    Hi,
    Has anyone got any ideas why sending emails to some domains results in the timeout for sending getting hit?

    For example, in the tracking logs im seeing either:
    Code:
    Submitted
    24/02/2011 14:58 Mailbox.domain.com
    The message was submitted to transport.domain.com
    
    Failed
    26/02/2011 15:15 transport.domain.com
    The message couldn't be delivered.
    
    550 4.4.7 QUEUE.Expired; message expired
    OR
    Code:
    Submitted
    27/02/2011 10:34 mailbox.domain.com
    The message was submitted to transport.domain.com
    
    Transferred
    28/02/2011 07:54 transport.domain.com
    The message was successfully handed off to a different e-mail system. This is as far as we can track it.
    Now, correct me if im wrong, but if the email send connector is setup wrong we wouldnt be able to send any email at all?
    And the second error is a problem at 'their' end is it not?

    Thanks in advance all.

  • #2
    Re: Problem sending email to some domains.

    check in the sent connector and see if the "Address Space" tab has * under the address? if not add it there.

    Thanks,
    HN,

    Originally posted by boomam View Post
    Hi,
    Has anyone got any ideas why sending emails to some domains results in the timeout for sending getting hit?

    For example, in the tracking logs im seeing either:
    Code:
    Submitted
    24/02/2011 14:58 Mailbox.domain.com
    The message was submitted to transport.domain.com
     
    Failed
    26/02/2011 15:15 transport.domain.com
    The message couldn't be delivered.
     
    550 4.4.7 QUEUE.Expired; message expired
    OR
    Code:
    Submitted
    27/02/2011 10:34 mailbox.domain.com
    The message was submitted to transport.domain.com
     
    Transferred
    28/02/2011 07:54 transport.domain.com
    The message was successfully handed off to a different e-mail system. This is as far as we can track it.
    Now, correct me if im wrong, but if the email send connector is setup wrong we wouldnt be able to send any email at all?
    And the second error is a problem at 'their' end is it not?

    Thanks in advance all.

    Comment


    • #3
      Re: Problem sending email to some domains.

      Originally posted by Humannetwork View Post
      check in the sent connector and see if the "Address Space" tab has * under the address? if not add it there.

      Thanks,
      HN,
      It has.

      Checked what IP ISA is sending all SMTP traffic from, and checked with our DNS records online that mail.intellident.co.uk is going to the right place too.
      At a loss here.

      If i use http://mxtoolbox.com, it tells me that "Reverse DNS does not match SMTP Banner", which could apparently be something caused at the DNS records, but i cant find nout there.

      The SMTP logs come up with this every now adn then, although im not sure if its related to the same emails.
      Code:
      "Failed to connect. Error Code: 10060, Error Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 205.178.189.131:25"

      Comment


      • #4
        Re: Problem sending email to some domains.

        Queues are giving me lots of "451 4.4.0 DNS Query failed" or "Primary target IP address responded with : 421 4.2.1 unable to connect"

        Comment


        • #5
          Re: Problem sending email to some domains.

          Im theorising that the problem is either SMTP banner or DNS related.
          SMTP banner because online testing tools say that the banner is different than what it should be, and DNS related because the queues say theres DNS query problems.

          Ive changed the SMTP banner to what i think it should be, but it still errors.

          Is there a way that i can find out what it should be?

          Thanks.

          Comment

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