On Aug 9, 2006, at 8:29 AM, Bill Cole wrote:
What is the best way to migrate user mail box files from SIMS to
Postfix/Cyrus?
Get your users to retrieve and delete all their mail off the old
server, then starting up the new one.
Well, that had been the plan, until OS X grew a mind of its own. I
still don't know if it did this as a result of something in the
10.4.7 update, or if it was because I had the mail services half
configured and waiting to be turned on, and this was the first time
the box had been rebooted since configing those services.
Either way, I was (and still am) mighty annoyed that they turned
themselves on without my permission, and offered me no way to turn
them back off.
In principle you could convert the SIMS mailboxes to Cyrus format,
but that's not likely to work well. You can find a script called
unix2cyrus.sh in a post to the Postfix-Users at http://
archives.neohapsis.com/archives/postfix/2004-04/0966.html but it
would probably need adjustment to the fact that SIMS mailboxes use
<CR> line breaks (or you'd have to convert them to <LF> breaks
first...)
That script has an advantage over straight file conversion in that
it breaks up the old mailbox into messages and feeds them into the
'deliver' program for delivery into Cyrus mailboxes, so you are
really having your Cyrus mailboxes built by the same process that
would happen if you were accepting those messages normally and
delivering them. It also has the advantage of being able to bring
up the new Postfix/Cyrus combination live and having it live while
the old SIMS mailboxes are fed in. There is some risk that users
who have been leaving their mail on the server intentionally might
end up seeing the old messages as if they are new again, but that's
pretty much unavoidable.
Thanks, I'll take a look at that. Converting the line breaks
shouldn't be a problem. SIMS uses a text file, and BBEdit will make
quick work of changing those breaks. This method may work best for me
as it may mean the least amount of headache.
-chris
<www.mythtech.net>
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