On Sun, Feb 08, 2009 at 09:50:16PM -0800, Jeff Weinberger wrote:
>
> I am trying to figure out the best way to map one domain to another with
> the same users...precisely the behavior I am trying to achieve is: when
> mail is sent (from outside, or from another user within my postfix
> installation) to u...@domain1.tld I want it redirected to u...@domain2.tld
> - in otherwords, the user is preserved, but the domain is
> translated/rewritten. To be more specific:
>
> us...@domain1.tld gets re-routed to us...@domain2.tld
> us...@domain1.tld gets re-routed to us...@domain2.tld
- Are you looking to rewrite just the envelope recipient, or also message
From/To/Cc headers?
- Is all mail first passed through an SMTP content_filter?
- Are all the original and rewritten recipients delivered to another host
via SMTP, or is some of the mail delivered locally (local, virtual, ...)?
>
> My initial guess is to use recipient_canonical_maps and use a pcre map:
>
> /^(.*)@domain1.tld/ {$1)@domain2.tld
This guess is wrong for many reasons, but I think it best to first
understand what problem you are really trying to solve, before we
tear apart the wrong answer to potentially the wrong question.
> I don't see a way to achieve this with alias_maps and header_checks (with
> action REDIRECT) would miss messages sent to u...@domain1.tld where that is
> not the To: or Cc: address (such as list mail).
This is worse.
> Really, I am just checking with experts more knowledgeable than I whether I
> have chosen a good (or the best) way to achieve this, or if there is a
> better way.
Yes, there is a correct way of solving your problem, but first describe
your problem in more detail.
--
Viktor.
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