OT - one gateway to multiple mail hubs/domains

[Jameel Akari]

On Thu, 23 Jun 2011, Steve Campbell wrote:

> Overtime time:
>
> How do most of you who have multiple domains route your mail through a 
> singular gateway running MS to multiple mail hubs (server with mailboxes)?
>
> I'd like to consolidate my mail servers running sendmail and MS into one 
> gateway. Right now, I have one server per domain, but see no reason why I 
> can't put up a single incoming gateway for all domains which could route the 
> mail to the mail hubs.

In ssendmail, I use mailertable.  If you have multiple internal mailbox 
servers for a given recepient domain, you can also setup some 
internal-only MX records to use in those mailertable entries, and get some 
simple yet fairly robust load-balancing and failover.

We have two MailScanner front-ends for all of our domains (soon to be 
four, so I can finally upgrade to a non-ancient MailScanner) and I've been 
doing routing this way for years.  Very handy, quite flexible.

-- 
Jameel Akari