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Exchange won't send emails to specific domain respond: 550 #5 1.0 address rejected

Answered Exchange won't send emails to specific domain respond: 550 #5 1.0 address rejected

  • segunda-feira, 21 de maio de 2012 16:11
     
     
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    Hello,

    Syste: server 2008 

    Exchnge 2010

    we are having a problem where trying to send emails to a specific domain it is not going out throught the queue, seems like the email server we are sending the emails to is rejecting us with the following error code:

    #550 4.4.7 QUEUE.Expired; message expired ##

    d when I look into Exchange, I see the following error: 

    Remote server mailserverdomain.com failed the acceptance test. RCPT TO command: respond -= 500 #5.1.0 Address Rejected

    Seems like the mail server we are sending the email to is trying to authenticate the email address sent from with our server but it's getting an address non valid from our server- is that right?

     

Todas as Respostas

  • segunda-feira, 21 de maio de 2012 20:26
     
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    The message expired error is an error generated by Exchange.

    The second error is the true cause of the problems. The remote server is rejecting your message for some reason. It isn't completely clear why. It could be some kind of sender validation process, but those aren't that common now. Have you tried a telnet test to the remote server to see if the same thing happens, and so you can see the full SMTP communication?

    Does your email come in through another route, just in case they are doing an old sender validation test and cannot connect back to your server to verify things? If you are using an antispam provider and are restricting SMTP traffic in then that might be an issue.

    Simon.

    Simon Butler, Exchange MVP
    Blog | Exchange Resources | In the UK? Hire Me.

    • Marcado como Resposta Castinlu sexta-feira, 8 de junho de 2012 06:23
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  • terça-feira, 22 de maio de 2012 07:48
     
     
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    hi,

    May be your domain have been listed in their blacklist. I think you should ask their admin why do they reject your mail.  Probably they need you provide PTR record or SPF record. No matter what they need, i want to say that the issue isn't at your side.

    hope can help you

    thanks,

    CastinLu

    TechNet Community Support

     
  • domingo, 27 de maio de 2012 01:23
     
     
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    it says "rcpt to" was rejected.  While it could be some convoluted way of enforcing anti-spam, the most obvious reason would be due to an invalid recipient, or the recipient is unauthorized to accept mail, such as a scenario where they are over their quota or something.


    Mike Crowley | MVP
    My Blog -- Planet Technologies