🚀 go-pugleaf

>From JWALKER@Bbna Wed Mar 10 19:58:32 1982
Sure.  It makes perfect sense not to @i[require] the To: field,
for example, in applications where you are just filing the
message, rather than actually sending it.  This is a case,
however, where the spirit of the law demands some indication of
the auspices under which the mail is arriving even if the letter
of the law does not.  Note that RFC733 tried to make that the
case by requiring the From field.  Unfortunately in the big
public mailing list world, the From: information does not make
that identification and the To: field would.