Migration Strategies?

[Ken Murchison]

Andrew J Caird wrote:

> Hello all,
>   I'm starting to think about migrating away from UW-IMAP (for the reasons
> mentioned a few days ago on this list) to a Cyrus IMAP server that we've
> been using for some people for a while.
>   It's easy enough to migrate everything except the inbox with mailutil,
> and in my (so far) limited testing that works pretty well (see below).
> However, how do people deal with migrating the inbox, given that it can
> change during the migration?
>   More specifically, the email gateway is currently configured to deliver
> email to, for example, acaird at uwimap.fccc.edu.  I migrate that inbox, and
> before I can switch delivery to acaird at cyrus.fccc.edu, more email comes to
> acaird at uwimap.fccc.edu.  Then what?  Alternatively, if I start delivering
> email to acaird at cyrus.fccc.edu and then migrate on top of it, does that
> cause any problems?  It seems like the second choice is the best one, but
> some confirmation from someone who has done or understands this would be
> much appreciated.

Why not just shutdown Cyrus and let your MTA spool incoming messages 
while you migrate?

-- 
Kenneth Murchison     Oceana Matrix Ltd.
Software Engineer     21 Princeton Place
716-662-8973 x26      Orchard Park, NY 14127
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