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Thread: Avoid Sender Spoofing..

  1. #1
    gilbertonunes36 is offline Active Member
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    Default Avoid Sender Spoofing..

    Hi friends...

    Here on my infrastructure I have a pure postfix server running perfect...
    I set my server for not accept send mail without authentication...
    But, seems to me that is not default on Zimbra Server...
    Is there a way to set this??
    On my old server, I set postfix like that:

    mynetworks_style = host

    I try set this on Zimbra, but take no effect...

    Thanks for any advice....

  2. #2
    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by gilbertonunes36 View Post
    I set my server for not accept send mail without authentication...
    That's already set, it's Port 587 as the correct Submission port and it requires authentication.

    Quote Originally Posted by gilbertonunes36 View Post
    But, seems to me that is not default on Zimbra Server...
    It is as I've mentioned above. You might also like to look at the function of the "Trusted Network" setting in the admin UI.

    BTW, I'm not sure I understand what your question has to do with the title of this thread.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    gilbertonunes36 is offline Active Member
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    Hello Bill

    I see what you said...
    I configured Outlook to use port 587 and worked properly, required me correct authentication before I send a mail...

    But I have another question: is it possible block port 25 that not accept connection and force users use olny port 587?

    Thanks
    Last edited by gilbertonunes36; 11-06-2012 at 06:39 AM.

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