Log Message:
Update to 4.0.8. From the changelog:

4.0.7:
  -change failure of a message filter to produce at least as many mail headers
  as it was provided from a fatal to a non-fatal error.  The message will
  be skipped.  Thanks: Payal Rathod.
  -a few non-conformant IMAP4 servers don't implement SEARCH, so getmail
  couldn't get a list of UIDs.  Changed to use FETCH instead.
  Thanks: Matthias Andree.
  -prevent traceback if IMAP SSL connection closed during connect().
  Thanks: Payal Rathod.
  -add warning if unknown parameters are supplied to a retriever, filter,
  or destination.
  -write subclasses of Python imaplib classes to work around missing
  UIDVALIDITY select() response.  Add it to the state getmail keeps.
  Thanks:  Matthias Andree.
  -move message state saving to later, so getmail doesn't falsely remember
  having handled a message.  Thanks:  Matthias Andree.
  -change location of documentation/man pages to
  <prefix>/share/{doc/getmail,man}/ to be more comformant with the FHS.
  -documentation updates

4.0.8:
  -add an extra error message if you ask getmail to deliver to a maildir,
  but getmail can't check the contents of it due to permissions.
  Thanks: Clemens Buschmann.
  -fix breakage introduced in 4.0.7: getmail would forget a message was \ 
"seen"
  after a cycle of not retrieving it.  Thanks: Payal Rathod.