>I've got a subscriber who can send commands to listserv and have them
>executed, but his posts to a list seem to vanish in thin air. The mail log
>shows his postings are received, but there's no corresponding entry
>in the listserv log to distribute them.

They're probably being rejected for some reason.  What appears in
LISTSERV's log file at the time the messages are received?

>One thing I did notice was a single semi-colon, ":", in the headers. I'm
>not sure if this is munging up the RFC822 check. If it is, would this
>still allow a sub command to go through but not a post to a list? Any
>ideas?

Where in the headers does the semicolon appear?

Thanks,
--
Jacob Haller, Technical Support
L-Soft international, Inc
http://www.lsoft.com/