Main mail server has Exim + Courier and not provide feature of mail archiving
so we want to save all outgoing and incoming mails of user in our Intermediate
server with exim+courier which will listen users requests and forward to main
mail server with a copy of mail in Intermediate server .
________________________________
From: Sam Varshavchik <mr...@courier-mta.com>
To: "courier-users@lists.sourceforge.net" <courier-users@lists.sourceforge.net>
Sent: Thursday, July 25, 2013 3:31 AM
Subject: Re: [courier-users] Mails Copy
Direct Logic writes:
> Thanks Sam,
>
> i want to do the following setup
>
> Main courier Server <---> Secondary Courier Server <---> Client
>
> I want user connect with Secondary courier server to fetch mails and
> secondary server contact with main server and fetch mail on behalf of client
> and deliver mails to client with a copy of all mails in secondary server as
> well.
Although there are several different ways to do that, you should, instead,
explain what problem you're trying to solve. Quite often, instead of
explaining what the problem is, one thinks that there's only one way to
solve a problem, and tries to figure out how to do that, when there's really
a better, different way to solve the problem that's going to work much
better.
But, to narrow down the answer precisely to this, the best way would be to
use mail aliases. See "ALIAS SPECIFICATIONS" in the makealiases man page. An
alias entry of "address1: address2, address3" forwards mail addressed to one
address to two different address, and you'll just need to carefully
configure domains, host names, and server configuration to end up with the
desired results.
So, with a mail domain of @example.com, and two servers host1.example.com
and host2.example.com, each server would configure example.com as a hosted
domain, with each host's name, and a local domain, set to
host[n].example.com.
Then, on host1, it's a matter of defining aliases of the form
"u...@example.com: user, u...@host2.example.com", so each mail gets
forwarded to a local mailbox, and to the same mailbox on host2.example.com.
That's it.
But, you're probably trying to solve a completely different problem, for
which a better solution probably exists, as I said.
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