troubleshooting Question

Can I direct all SMTP traffic over a specific gateway?

Avatar of Mahoolah
Mahoolah asked on
Windows Networking
7 Comments1 Solution260 ViewsLast Modified:
- Small Business Server 2000
- Gateway 1 : Fixed IP, 1/2 meg connection  :
- Gateway 2 : Dynamic IP, 4 Meg connection :

Gateway 2 is new and very quick compared to gateway 1.

I Switched the server's gateway over to gateway 2 and found that many emails sent from the business were returned as the recipient won't trust smtp mails from a dynamic IP.  

I want to utilise gateway two as fully as possible.

Is there any way i can direct all SMTP traffic over to gateway 1 whilst using gateway 2 for all other internet traffic?

I've added gateway 2 as a second gateway with the same metric as gateway 1, and sometimes it seems to utilise gateway 2 - I've done speed tests which prove this - but also I've done speed tests which show only 1/2 meg usage.

I've also blocked port 25 on Gateway 2's firewall so when mail does go out, it has to go through gateway 1.

When I put gateway 2 as the primary gateway, mail ends up queing in the exchange system.
When I put gateway 1 as the primary gateway, bandwidth from gateway 2 is not always utilised

Any input would be gratefully recieved!
Keith Alabaster
Enterprise Architect
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