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I am trying to use Postfix to send mail via ( or to ) my ISP. I have created a small PHP script which uses the internal 'mail($to, $subject, "", ...
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  1. #1
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    Unable to send mail to my ISP mailbox.


    I am trying to use Postfix to send mail via ( or to ) my ISP.
    I have created a small PHP script which uses the internal 'mail($to, $subject, "", $header)' function, where the $header contains ( amongst other things ) 'From' and 'Reply-To' as a valid email address at my ISP.
    The message is being rejected every time with:-

    Final-Recipient: rfc822; to_me@my_isp.com
    Action: failed
    Status: 5.0.0
    Diagnostic-Code: X-Postfix; host mx.core.my_isp[nn.nn.nn.nn] said:
    550-Verification failed for <apache@localhost.localhost> 550-Unrouteable
    address 550 Sender verify failed (in reply to RCPT TO command)

    How to I configure postfix to advertise as 'a_user@my_isp.com' instead of 'apache@localhost....' ? or, alternatively, not send the RCPT TO.

    Mandrake 10.0

    Please, please help

  2. #2
    Linux User
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    Oct 2004
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    /dev/random
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    That is because your postfix is not configured for relaying...
    Read the SMTP RFC (ftp://ftp.rfc-editor.org/in-notes/rfc2821.txt) - Section 4.1.1.3
    The Unforgiven
    Registered Linux User #358564

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