Filter outgoing email

Discussion in 'qmail' started by Cinghiuz, Apr 8, 2016.

  1. Cinghiuz

    Cinghiuz New Email

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    Apr 8, 2016
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    Hi there,

    I've got a qmail server that is working from several years. I manage about 15 domains on it and everything works fine except that I would like to block some spammer from send mail even if they are authenticated.

    I need to leave authenticated user be able to send email from across the world since they travel a lot, so I can't filter from IP, etc. but I would like that if a user is authenticated with an email address he can't send email with an address with a different domain.

    For example:
    user@domain1.com authenticates with his email client (Outlook, Thunderbird, etc.) with correct username and password and send email to me@domain2.com, you@gmail.com, etc. from user@domain1.com

    But I would like to block his mails if he try to send mail from user@anotherdomain.com authenticated with username user@domain1.com.

    Is it possbile?

    Many thanks in advance to anybody who will help me!

    Cinghiuz
     


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