Server migration - UIDL & Outfloop

[Christian Cernuschi]

I'm planning a migration from Cyrus 2.1.9 to Cyrus 2.2.12 (Suse->Gentoo)
but i have few doubts.

Unfortunatly clients are Outlook with POP3 "leave mail on server" (they
cannot use imap for several reasons)

I know how to keep mailbox structure (as they also access mailboxes
through webmail and take benefits from imap features)

My problem are UIDLs.
If those uidls change...all mails are re-downloaded (we're talking about
gigs mailboxes)

I think they are stored in cyrus.* files.
So i shouldn't have problems migrating.
But i would like to be sure that file formats are compatible and a
reconstruct won't change them.

Anybody can help me?
Thank you very much!
Bye

Christian

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