X-OfflineIMAP header and Exchange

Dave Mussulman mussulma at gmail.com
Fri Jan 29 16:07:04 GMT 2010

Hi gang,

I'd like to revisit the per-message dynamic header X-OfflineIMAP-xxxx
issue because now I'm getting pressure from my Exchange admins about
filling up the MAPI header tables.

I found http://software.complete.org/software/issues/show/114 but had a
few questions about the patch.

The patch only seems to address the X-OfflineIMAP-* header when it's
created.  Wouldn't a patch also need to modify wherever that header
gets parsed/read/sync'd?  Or is just changing how it's created good

What's the impact of making this change on a large existing sync'd
maildir?  Would my messages show up as new again?  Anything else to look
out for before trying the patch?

I'm running OfflineIMAP 6.1.2 because I like the IDLE feature.  The
patch looks easy enough to apply; I just don't understand what
OfflineIMAP does under the hood with that header.  My usage is pretty
vanilla - one Remote Exchange store to a local Maildir.  No other
instances or sync'ing.


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