BL> BTW... Do you interpret that the final PATH line should be terminated
BL> by a CR?

Yes.

BL>   FTS-1 says of Control lines: "They end at the end of the physical
BL> line" whatever that means. 

Control lines are terminated by CR or CRLF, ref FTS-1.

BL>   I assume that the message should end with #13#0, since most do, but
BL> I've got a few messages that don't, and they hung my PKT2QWK quite
BL> nicely until I added another check for the end null.

They are out of spec.  Sometimes you see a Ctrl-Z after the last
SEENBY too.  That is not explicitly out of spec.

BL>   This mess is all the fault of your EOT, btw.

Ctrl-Z and other crap is outlawed by SOT/EOT.  So are soft-CRs.
BFN.  Paul.
@EOT:

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