Daniel Mayer [COUGA.net] wrote:
Hi,
we are working on evolving our amavisd-new setup from one to two machines.
Box 1 providing the final delivery to the mailbox and box 2 performing spam
and virus filtering guided by amavisd-new.
The question is where to point the MX's of the domains to? Box 1 could accept
the mail and forward it to amavis and then get it reinjected for final
delivery. Another option would be to install postfix also on box 2, accept
mail there in the first place, scan it and then forward it to box 1 for
delivery.
Do you have any recommendations? Which is the best-practice for this?
I prefer the second approach:
- box2 is a mail gateway (mx and filtering)
- box 1 is mail store (pop/imap/...)
This role separation is more natural. you can add/replace the gateway
box without having to deal with user access (imap/pop), and conversely,
you can add/replace mail stores without disturbing the mx and filters.
this also saves one trip.
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