Using Qmail as front-end for Exchange

[Guest_imported]

This request seems simple enough, but I have either been too lazy to look more carefully, or it has not been addressed anywhere....

I would like to use Qmail as a front-end mail gateway. Basically a Linux box running Qmail sits on the DMZ of a network and sends/receives email. It must then forward all of its incoming mail to an MS Exchange 2000 box sitting inside the firewall rather than send it to a Mailbox or Maildir on the Linux box itself. In fact, the Linux box will have no local users except root and an admin account. The Exchange box, in turn, must use the Qmail box as a smarthost and forward all of its outgoing mail thru the Qmail box.

This is done, of course, to protect a company's Exchange server from attack, while still preserving the current workstation mail setup internally. This mail "proxying" should be transparent and reliable.

Can anyone offer any suggestions for doing this?

Thanks,
Anthony

 

[glacierdenali]

I am interested in doing this EXACT same thing. I want to use qmail in my DMZ to forward to my Exchange server in the private LAN. I have read the LwQMail documentation and still am stumped after 2 weeks. Any help would be GREATLY appreciated.

Thanks in advance for any helpful replies.

 

[ShadowTech]

Its in fact relatively easy, I've done it on one of client services. Only thing you need is smtproutes set up correctly and off ya go! Qmail's website,

http://www.qmail.org

has further details