Did calculating the quota change from 2.3 to 2.5?

Adam Tauno Williams awilliam at whitemice.org
Wed Nov 30 08:41:39 EST 2016

> > If you use imapsync, it doesn't know about that, and will upload
> > the same message twice. 2.5 doesn't have the smarts to recognise
> > that it's the same message.
> imapsync can only sync mail the old server knows about. And in the
> end there is more quota used on the new server!?
> The only explanation is the quota on the old server is broken, isn't
> it?

No, IMAP doesn't know about deduplication;  so imapsync between two
servers dededuplicates.  imapsync may also repair damaged or missing
message headers - meaning the messages are no longer are the same - so
a tool like hardlinks will not return you to the same count in du as on
the old server.

And then there is the [virtuous] issue of delayed expunge.

Adam Tauno Williams <mailto:awilliam at whitemice.org> GPG D95ED383
Systems Administrator, Python Developer, LPI / NCLA

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