[Mimedefang] SMTP error return after DATA?

[Fox, Randy]

> -----Original Message-----
> From: Michael Sims [mailto:michaels at crye-leike.com]
> Sent: Friday, May 09, 2003 7:56 AM

> We're a not a huge company (about 5000 accounts) and we only have one public
> mail exchanger.  This happens to be the same server that internal users use
> to relay.  It's not really an option for me to have sendmail tempfail
> connections on this machine.  To our users, "Please try again later" is the
> same thing as "email isn't working".

Separate your central hub (this system) function from your relay (smart host) function.  This way, your users are unaffected by external traffic/load.  Put MD/SA on the relay and point your public MX record at it.  You can use mailertable to direct inbound mail from the relay to your central hub and use smart host to direct mail from the central hub to the relay.  As you add this new relay, the only system you'll have to reconfigure is the hub, not the desktops.

Randy