[Spambayes] IMAPFilter

Oliver Maunder lists at olivermaunder.co.uk
Wed Apr 16 12:08:59 EDT 2003

Hi all

I've been playing around with imapfilter.py, which is shaping up very 
nicely (thanks Tony and Tim!).

However, I'm having a couple of problems with the latest version, which 
isn't too surprising. To quote Tim's CVS comment:

"IMAP seems to be a really flukey kind of interface, and until it's been used
on lots of imap servers, by lots of people, I won't be convinced that it's
really correct."

Well, for a start my IMAP server doesn't seem to like the preserved 
timestamps on the messages. The error message is

Timestamp: Wed, 02 Apr 2003 10:12:56 +0100

Traceback (most recent call last):
  File "C:\Development\SpamBayes\spambayes\imapfilter.py", line 415, in ?
  File "C:\Development\SpamBayes\spambayes\imapfilter.py", line 323, in 
    folder.Filter(self.classifier, self.spam_folder, self.unsure_folder)
  File "C:\Development\SpamBayes\spambayes\imapfilter.py", line 279, in 
Filter    msg.Save()
  File "C:\Development\SpamBayes\spambayes\imapfilter.py", line 151, in Save
    time_stamp, self.as_string())
  File "C:\Program Files\Python22\lib\imaplib.py", line 296, in append
    return self._simple_command(name, mailbox, flags, date_time)
  File "C:\Program Files\Python22\lib\imaplib.py", line 925, in 
    return self._command_complete(name, apply(self._command, (name,) + 
  File "C:\Program Files\Python22\lib\imaplib.py", line 762, in 
    raise self.error('%s command error: %s %s' % (name, typ, data))
imaplib.error: APPEND command error: BAD ['Invalid date-time in Append 

Second problem is that my IMAP server doesn't like messages with bare 
newlines. It expects lines to end with \r\n, and refuses to APPEND 
messages with lines that end in just \n. The easiest thing to do would 
be to just replace single \n's with \r\n. I'm sure that with the power 
of python it won't need more than one line of code to do this, but I'm a 
total python newbie. Anyone care to enlighten me as to what this line 
might be?


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