senddigests: Message instance has no attribute 'get_type'

[Gzp]

Python 2.5.1
mailman 2.1.10b3

compiled everyting from source on Linux.

Seems like mailman working fine, except sending out digests.
Running senddigest from the cron dir generates the
fillowing error and the mbox file left unprocessed:

List: moricz: problem processing
/var/spool/mailman/lists/moricz/digest.mbox:
Message instance has no attribute 'get_type'

[http://sourceforge.net/tracker/index.php?func=detail&aid=1893463&group_id=103&atid=100103]

[Gzp (gzp)]

Originator: YES

Manually compiling and using email-2.5.8 from misc/ in
$PREFIX/mailman/pythonlib/ solved the problem.