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smtp #5.1.0 error

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  • smtp #5.1.0 error

    Hi,
    I can send email to the one user destination domain. But I couldn't send to the another user from that same destination domain, and I got the bounced email by following. pls kindly help for it. thank.

    There was a SMTP communication problem with the recipient's email
    server. Please contact your system administrator.
    <mail.mydomain.com #5.5.0 smtp;550 #5.1.0 Address rejected

  • #2
    Re: smtp #5.1.0 error

    You need to speak to the recipient about this.
    They are the only people who can tell you why the message is being rejected. The NDR doesn't provide enough information.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
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    Sembee is a registered trademark, used here with permission.

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