Bounceback email error

Posted on 2012-09-20
Last Modified: 2012-10-27
Do you know what this error mean? My feeling is that the mail server on the receiving end generated based on the spam settings. what do you think?


This is the mail system at host

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<>: host[] said:
    (in reply to end of DATA command)
Question by:TREOST
    LVL 1

    Assisted Solution


    What's the receipent address and what's the sender address ?
    and if possible paste the Bounce Mail header

    The link paste above is blocked in my country so cannot check.

    LVL 63

    Assisted Solution

    by:Simon Butler (Sembee)
    Yes, I would agree - the remote site is rejecting the email for some reason. Unfortuantely their reason code doesn't work, so there is no way of knowing why.

    LVL 26

    Assisted Solution

    I'd forward it to and ask what the deal is.

    LVL 8

    Accepted Solution

    A handy ref guide to have on hand for some errors that you will see

    SMTP Error 500 : The last command sent by your server
    was not recognized as a valid SMTP or ESMTP command,
    or is not formatted in the way the server expected. This
    includes situations where the command is too long.
    Note that commands that are recognized, but not
    implemented, are handled by different status messages
    (see 502 and 504).
    Note : A “500 unrecognized command” server response
    is often a case of antivirus software and/or firewall
    interfering with incoming and/or outgoing SMTP
    communications. Read your antivirus / firewall software
    documentation thoroughly to solve the problem.
    Examples of SMTP Error 500 error messages : “SMTP
    Permanent Error: 500 Access Denied By Port Access” or
    “SMTP Error 500 Line too long”.

    Author Closing Comment

    Thanks for your input!

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