Accepting Mail From another Mail Server

Mail Passing (Postfix)

[odewittt]

Ok first

Dns Setup:
example.com mail exchanger = 5 mail1.example.com
mail1.example.com mail exchanger = 100 mail2.example.com

Servers:
mail1.example.com Receives Mail->Example.com
mail2.example.com Receives Unwanted Mail-<Mail1.example.com
mail3.example.com Receives Unwanted Mail-<Mail2.example.com

I am trying to pass all unwanted mail from mail1.example.com to mail2.example.com.

mail2.example.com will only be able send from localhost and only receive mail from mail1.example.com, no other smtp connection. Also unwanted mail that mail2.example.com has is pass to mail3.example.com.

I am having so many problem trying to come up with a configuration. Your help would most appreciated.

Thank
Otis

[jeremy goodrich]

Welcome to WebmasterWorld!

I don't have any experience with setting up a mail configuration like this, so I'll see if we can't 'rally the troops' to get a better answer.

[mischief]

Could you maybe be a bit more specific about which part of the config you're having troubles with? Each mail server will need different setups, so it would help to know which bits you've solved already. Also, what do you mean by 'unwanted', exactly? Mail that's not explicitly in mail1's config files? Mail for domains that mail1 isn't the MX host for? Spam? :) And what should happen to the mail after it gets to mail3? Why even bother with passing the mail to mail2 first if it's going to get passed straight on to mail3? If you've set it as the backup MX for mail1, and mail1 goes down, it'll need to be able to queue the mail until mail1 gets back up, so it should really have the same criteria for "wanted" mail as mail1.

Can you say a bit more about what you're trying to do, exactly?