6.4:
- disable SOCKS by default? Add hooks to do that?
- > b) When the envelope header is specified, but it isn't found, a
  > warning is logged and the mail is forwarded to the postmaster
  > ("WARNING: Envelope header $HEADER found, cannot identify the
  > recipient.  Forwarding to the postmaster")
  Rob MacGregor 2007-03-16 Patch to the man page, fetchmail-devel@
- integrate Isaac Wilcox's test rig
- look at Tony Earnshaw's .spec file
- look at Gentoo patches
- remove dead replacement functions: strdup (Andreas Krennmair), ...
- more SMTP/LMTP error detail on message rejections even outside verbose mode.
  Ian D. Allen, fetchmail-users. Two messages with examples.
  What goes here? fetchmailrc location, server, port, user, folder, anything else?
- see if "AUTH SSH" can be made to work for POP3
- revisit BerliOS patches
- check recent list mail
- check Debian BTS and other bug trackers
- better logging (log all headers, log forward destination + method)
- check strict envelope N Received parsing,
  see mail from Admin Att on fetchmail-users
- 6.3.4-pending-deletes.patch
- fetchmail -s with running daemon complains rather than silently
  restarting daemon
- send warning message when connection fails?
- when logging to syslog, disable locale?
- check FAQ O5 - do we really prefer From: over envelope?!?
- add code to allow safe authentication schemes if TLS fails
- make APOP an authenticator, integrate with regular auto authentication
  but stuff it at the end
- use SASL?

DOCUMENTATION:
- Add info whether Keywords are global, server or user keywords
- consolidate multidrop documentation