Re: Exim and SMTP on an internet gateway
If you want to carry on using MS Exchange as your MTA, why not just
use port forwarding?
Friday, November 1, 2002, 6:03:08 AM, firstname.lastname@example.org wrote:
DK> I've been reading some docs and googled for answers, but still need help
DK> setting up exim (or another MTA, suggestions?) on our internet gateway.
DK> SHORT VERSION
DK> I want exim to accept inbound SMTP for our domain from the internet, and
DK> forward it to our internal mail server.
DK> I want exim to accept outgoing SMTP from our domain, and forward it to the
DK> ISP smarthost.
DK> Later I want to plug anti-virus and anti-spam tools into exim, to prevent
DK> unwanted emails from being sent or received. That is a question for another
DK> day, though.
DK> TECHNICAL DETAILS
DK> We have a simple local network, in the 10.0.0.0/24 address range that is
DK> standard for Microsoft Small Business Server networks.
DK> The server (server2.ourdomain.no) at 10.0.0.2 is running MS Exchange, which
DK> is our main mailserver.
DK> The gateway (gator.ourdomain.no, running Debian/stable) at 10.0.0.1 is
DK> running iptables and masquerading, as well as some proxies. The second NIC
DK> has a permanent, public IP and is connected to the DSL-router that provides
DK> our internet connection.
DK> All outgoing mail is sent via the smarthost provided by our ISP.
DK> It seems easy enough to make exim accept all mail for ourdomain and forward
DK> outgoing mail to the ISP smarthost. However, local delivery of mail to
DK> ourdomain is not what I need ... I want _that_ mail forwarded 10.0.0.2.
DK> Surely, this must be a common situation? Could someone please help me
DK> configure exim to do this, or point me at the right docs. Unfortunately,
DK> the docs at www.exim.org didn't mention this scenario. I'm sure that I
DK> could do this if I fully understood the exim docs, but alas - I have not
DK> fully digested them yet.
DK> Thanks a lot,
DK> David Knudsen
DK> David Knudsen, aka Dansken on #vgaplanets/EFnet
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