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"450 4.7.1 Client host rejected: cannot find your hostname"

Discussion in 'Plesk 9.x for Linux Issues, Fixes, How-To' started by kaizer, Sep 30, 2010.

  1. kaizer

    kaizer Guest

    0
     
    After we have switched from Qmail to Postfix, it seems our clients are facing a problem with their e-mail. It seems that some get their emails in return, with this error message "450 4.7.1 Client host rejected: cannot find your hostname"

    Any ideas how to prevent this?
     
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