From: Sahil Tandon (sahiltandon.net)
Date: Thu May 01 2008 - 19:04:17 CDT

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* Victor Duchovni <Victor.Duchovnimorganstanley.com> [2008-05-01 19:24:17 -0400]:

> On Thu, May 01, 2008 at 04:17:26PM -0700, Curtis Vaughan wrote:
>
> > This is great question, as I've been wondering how people meet gov.
> > requirements on storing corp. emails with Postfix.
> > As it is our problem is that some people use POP3 and delete as they
> > download (I've been fighting this for years, but I can't control the
> > foreign office!).
> > Anyhow.... Even with IMAP, although most mail is saved, still there is
> > they can delete emails from Trash and then those emails are lost.
>
> You can get a fair wait with regexp based recipient_bcc_maps, which
> allow you to capture the original envelope recipient. Merge message
> copies are not sufficient IMHO as headers are not accurate/complete.
>
> I usee a "tee" proxy that sends an encapsulated archive copy and the real
> message in parallel (archive "." immediately precedes message "." and
> blocks message delivery on failure).
       
Is there publicly available documentation on how to implement the tee proxy
backup solution in Postfix?
       
--
Sahil Tandon <sahiltandon.net>

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