Using a DMZ for email?

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著者: Anthony Hologounis
日付:  
題目: Using a DMZ for email?
Hello


I set up a DMZ to run http, smtp and ftp services external to my private
network. Http and ftp seem to be pretty simple. I have some questions
about SMTP.

I have postfix running on the DMZ machine and it gets all of the mail
external to me. My private/protected network has a mail server that I
use to send mail. The INTERNAL network can pop/imap the mail from the
DMZ machine but in order for me to do this the DMZ machine has to have
the user name and password. This seems to be a security risk not to
mention extra administration. I have to create users twice to make this
work.

Is there a better way to do this?

--
Anthony Hologounis