NoneType popping up in syncing some folders from Exchange

chris coleman christocoleman at
Sun Jan 8 12:49:12 GMT 2012

It looks like Dale's mail server is probably a windows server 2003 host running microsoft exchange server 2003 ( I'm taking an educated guess because it's running IIS 6.0 web server).

Sebastian: is it possible that microsoft exchange 2003 is only going to send back the UIDVALIDITY message after the user has logged in ?  Similar to how google gmail emits a second, changed, UIDVALIDITY after the user has logged in.

Sebastian wrote:

On Sat, 7 Jan 2012 20:29:47 -0500, Dale Harris <rodmur at> wrote:

Hi there,
a server should send a UIDVALIDITY reponse, which yours apparently did
not. Perhaps that is an Exchange problem with empty folders?

Can you create an IMAP dump via "-d imap -l debug.log" and make that
available to me? I'd love to find out what the server sends. Make sure
to scrub your password/login from it and send it privately to me by

I will add some nicer error message in any case.

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