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From: Ruprecht Helms (rhelms_at_mayn.de)
Date: Wed Nov 27 2002 - 06:50:08 CST

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    Hi Steffen Dettmer,

    > Can you please explain that? I happily block tcp/25 on all
    > servers except mailservers.

    that is ok. I ment that you have blocked it on the central firewall.

    >> dial-up. If you have a mailserver in your DMZ
    >> you can disable pop3 to outside.
    >
    > And if I have a POP3 server in the LAN I cannot block?!

    I don't think so or we talk about different. I wrote to block to
    outside and not to your internal LAN. If you have the POP3-Server
    in your DMZ than you enable it to use from inside, but block it to outside.

    The only reason to give the using of the pop3-server free to use from outside
    is than your company have employees that have to do with customers and make a
    lots of visits by the customers and need to read everytime the companymails.

    Regards,
    Ruprecht

    ----------------------------------
    Ruprecht Helms IT-Service und Softwareentwicklung

    Tel/Fax.: +49[0]7621 16 99 16
    Homepage: http://www.rheyn.de
    email: inforheyn.de
    ---------------------------------- 

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