What happened to the MISSING_FROM rule, which evidently used to exist?
Did it ever exist??
I did a search of my rather comprehensive, but not all inclusive, library of SA versions and did not find it:
$ grep -r MISSING_FROM * $
$ ls Mail-SpamAssassin-2.0 Mail-SpamAssassin-2.42 Mail-SpamAssassin-2.60 Mail-SpamAssassin-2.01 Mail-SpamAssassin-2.43 Mail-SpamAssassin-2.61 Mail-SpamAssassin-2.1 Mail-SpamAssassin-2.44 Mail-SpamAssassin-2.62 Mail-SpamAssassin-2.11 Mail-SpamAssassin-2.50 Mail-SpamAssassin-2.63 Mail-SpamAssassin-2.20 Mail-SpamAssassin-2.51 Mail-SpamAssassin-2.64 Mail-SpamAssassin-2.30 Mail-SpamAssassin-2.52 SA3-pre1 Mail-SpamAssassin-2.31 Mail-SpamAssassin-2.53 SA3-pre2 Mail-SpamAssassin-2.40 Mail-SpamAssassin-2.54 SA3-pre3 Mail-SpamAssassin-2.41 Mail-SpamAssassin-2.55 SA3-pre4
Searching the bugzilla also turned up nothing
According to RFC2822 a From: is required.
Yes, and I suspect that most MTA/MDA's will insert one if not present, but I could be wrong here.
