Gromox 2.39

Fixes:

• midb: resolve protocol mismatches with imap, pop3; resolves rejection of IMAP CREATE, POP3 PASS commands
• midb: synchronize "Answered", "Forwarded" and "Flagged" flags between MAPI and midb
• midb: pass message flag modification notifications (answered/forwarded/flagged/read/etc.) to imapd
• midb: stop producing the TRYCREATE response for every command
  (e.g. message deletion will not succeed even if a non-existing folder is created, because the message will obviously not be in an empty folder)

Enhancements:

• When using import tools, no longer overwrite PR_LAST_MODIFICATION_TIME with the current time; retain the original timestamp if one exists.
• mbop: new foreach.* command group which replaces for-all-users

Behavioral changes:

• The default value for the outgoing_smtp_url config directive changed to sendmail:// (using postdrop rather than direct SMTP contact).