config.h have been removed.
- Support for the built-in ftp client (used when dealing with external body
message parts in MIME messages) has been removed.
+- fileproc and mhlproc mh-profile entries will now be obeyed by
+ send, rcvdist, and whatnow.
+- New format instructions %(putlit) and %(concataddr) have been implemented.
+- The --enable-pop configure option has been removed; POP support is now
+ compiled in always.