Check there is at least one destination in the packet.
Check for file updates before returning names and addresses.
Cosmetic updates and typo corrections.
Perform packet decoding in the mail processing routine instead of the pool processing routing.  This means messages stored in the pool are plain-test.
Make dummy message generation direct to a remote node.  We no longer need to route them back through the local remailer.
Minor corrections that cause processing interruptions.