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Date:      Mon, 28 Apr 2008 18:03:48 -0700
From:      Bill Campbell <freebsd@celestial.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Syncing Mail After Cut Over
Message-ID:  <20080429010348.GA3568@ayn.mi.celestial.com>
In-Reply-To: <alpine.BSF.1.10.0804281752090.3123@ns1.kq6up.org>
References:  <alpine.BSF.1.10.0804281752090.3123@ns1.kq6up.org>

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On Mon, Apr 28, 2008, Chris Maness wrote:
>Whould it be acceptable to use rsync to sync the mail spool after using 
>dump/restore onto new hardware?  I plan on doing some testing first and 
>leave the original server up while testing, so the servers mail spool will 
>be out of sync.

This is easy if your mail stores use Maildir where each message
is in a file.  I have done it many times, including at ISPs with
tens of thousands of e-mail accounts.  We set up a new server,
create the necessary accounts on it, move all DNS to point to
that server so that clients go to the new one, then rsync over
their old $HOME directories to the new server.

It's a completely different kettle of fish if the mail stores are
in single files such as the standard BSD/Unix mail stores, U.W.
IMAP's binary format, etc.

Bill
-- 
INTERNET:   bill@celestial.com  Bill Campbell; Celestial Software LLC
URL: http://www.celestial.com/  PO Box 820; 6641 E. Mercer Way
Voice:          (206) 236-1676  Mercer Island, WA 98040-0820
Fax:            (206) 232-9186

Liberty means responsibility. That is why most men dread it.
   -- George Bernard Shaw



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