On Sat, Dec 12, 2009 at 03:37:17PM +0000, Kārlis Repsons wrote:
> Could anyone help me sorting this out: its very convenient to store
> mails on mailserver and relay sent mail through it, so it gets sent
> immediately, but there is a problem: how can relayed sent mail be
> also saved on mailserver, using the same LDA program as for
> incoming mail (to place it into the right folder where also
> incoming mail is)? Is that possible?
This is generally best handled at the MUA/IMAP level, where a MUA
uses a "sent" IMAP folder to store mail. You could consider a
combination of PCRE sender_bcc_maps with recipient_delimiter:
/(.*)(\+.*)?(\...@your\.domain)$/ $1+sent$3
so u...@your.domain or user+someextens...@your.domain as sender is
BCCed to user+s...@your.domain . (You would of course want your LDA
to deliver these to a special folder. This is a simple matter to
manage with either of the Postfix delivery agents, local(8) or
virtual(8).)
There are many problems with a MTA-based approach such as this.
Consider this email for example. "GMX.co.uk" is not my domain, but I
set this address as my sender address. This mail would not have been
archived without a much more complex (read: won't scale well) lookup
for sender_bcc_maps. One user might have numerous legitimate sender
addresses to use.
Oh, you said you want the copies delivered to the same mail folder.
That's a little simpler, but still might not be what you really are
after. I think the bottom line is that you're trying to make a MTA do
things it was not meant to do.
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