Luis Mochan mochan at fis.unam.mx
Sat Jan 12 01:33:27 GMT 2013

> I believe that offlineimap inserts an
>   X-OfflineIMAP*
> header which is what it uses to see if a message is new.  It works
> on the principle that messages are immutable, which is part of the
> IMAP standard.  But if you remove that header, offlineimap will think
> that the message was deleted and that a new message appeared, and
> that should do the right thing.

Thanks Dan for the clear explanation!

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