On Wed, Feb 28, 2001 at 10:18:16AM +0000, Chris Moules wrote:
> I am setting up a new server (RedHat 7 - more here know it) and a
>firewall (OpenBSD 2.8 - my prerogative) for our network. I am going to
>use postfix as our mail server with Courier as a I-MAP server. I was
>thinking that I might be able to just map port 25 on the firewall to the
>internal server using NAT. Is this a good idea? Would it even work?
If you trust postfix enough to have it directly on the net. It
works flawlessly with a simple rdr rule.
>The other option is to install postfix on the firewall as well but I
>thought that it might be cleaner just to have it on the one machine.
Do not see the reason for another level och postfix, I would use
something designed for this use like smtpd/smtpfwdd which comes
in default install. It also adds a nice filtering feature so that
one can use RBL's [1] to block spam.
[1] http://www.orbs.org/
http://mail-abuse.org/rbl/
http://mail-abuse.org/dul/
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