Assertion error?

Sebastian Spaeth Sebastian at
Mon Dec 13 16:25:55 GMT 2010

On Mon, 13 Dec 2010 14:21:04 +0100, Philipp Haselwarter <philipp.haselwarter at> wrote:
> Hi Josh,
> I ran into the same problem, a few times now.

Thanks, the log helped. 

The error occurs in imapobj.append() trying to put the mail on the
server. To that request your IMAP server answers with a:

NO response: [CANNOT] Cannot APPEND to a SPAM folder.

So this is essentially an IMAP server error. Is this a SPAM folder?
Yeah, looking at the log, the folder is called Spam indeed.

OK, riddle solved. WHat are the possible solutions? WHat can we do other
than append in this case?
And what server/Version is that?


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