rsync-ing IMAP mbox-format mailboxes to NetApp

Chris Wakelin c.d.wakelin at
Thu May 31 09:21:16 GMT 2007

Paul Slootman wrote:
> On Wed 30 May 2007, Chris Wakelin wrote:
>> However, our IMAP software (Dovecot, but UW-IMAP does this too) stores
>> important, *changing* information (UIDVALIDITY and UIDNEXT) in a header
>> in the *first* mail message in the mailbox, so the first block (only!)
>> fails the checksum test.
> If you're using Dovecot, why use mbox files? Why not Maildir?
> With dovecot you can transition part by part, as dovecot automagically
> detects whether you use mbox or maildir. Maildir has many advantages
> over mbox...

Yes, the thought had occurred to me! Still, moving to Maildir is a bit
of a risky process (even gradually) and I was hoping for something we
could just "drop in" with minimum disruption. In fact, with Maildir, I'd
consider moving the entire message store onto NetApps via NFS anyway,
which would make rsync unnecessary too!


Christopher Wakelin,                           c.d.wakelin at
IT Services Centre, The University of Reading,  Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK              Fax: +44 (0)118 975 3094

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