🚀 go-pugleaf

From article <1019@marvin.Solbourne.COM>, by dce@Solbourne.COM (David Elliott):
>What I would prefer, though, is that if the From: line contains an
>@ and no !s, the From: line should be used, and otherwise the Return-Path:
>should be used.  That way, I use Internet addressing whenever it is
>available.  Currently, I just do this substitution by hand.

I did the same thing with like results.  I also made several changes to
sbr/addrsbr.c, uip/scansbr.c and uip/post.c so that

	1)	Addresses are rewitten to internet style addresses when mtstailor
		says to.

	2)	UUCP sites can make use of a domain which is attached to any machine
		that the local machine talks to directly (ihlpb!gregg becomes
		gregg@ihlpb.att.com)

	3)	When a UUCP style message is read by scan(), From: Date: and To: lines
		are inserted into the message if they are missing (/bin/mail only
        inserts a UUCP "From " line here).

	4)	send/post accept a -domain/-nodomain switch which allows you to
		change the header addressing format on the fly.

	5)	A uux gateway site can be specified which allows all unknown hosts
		to be processed logically (in a domain method, pass the buck if
		you don't know about this domain level).
-- 
Gregg Wonderly                             DOMAIN: gregg@ihlpb.att.com
AT&T Bell Laboratories                     UUCP:   att!ihlpb!gregg