Good afternoon, I'm looking to get some views and advice on the best way to set Postfix up so I can segregate a large newsletter list up into a semi decent working structure.
Basically my newsletter server has a /29 and I want to set up Postfix to (hopefully) do something like this: eth0:1 1.1.1.1 GMAIL Subscribers eth0:2 2.2.2.2 AoL Subscribers eht0:3 3.3.3.3 all others I'd like to be able to rate control the Gmail & AoL to complicate issues a little. I know how powerful and fast Postfix can be and I don't want to exceed the limits set on small scale mailers like us. What I'm looking for is the best approach to do this? I don't think I can do this with multiple instances as the incoming mail stream from the newsletter server (SMTP) has a stream of recipients at various domains, so what arrives in the Instance of Postfix will be mixed to start with. So I guess this means I'll need to simply do this in transports. I think I read that it's possible to create transports for specific SMTP destinations in the Book of Postfix. I guess I'd need to ask 'can I assign a specific interface/IP on a per transport basis?' Any suggestions or feedback would be gratefully received. Sam
