The pgp-send body should just be:

set TO = $1

cat | pgp -fe $TO | /usr/ucb/mail -s "encrypted mail" $TO

Can always check: ftp://furmint.nectar.cs.cmu.edu/security/pgp-send ftp://furmint.nectar.cs.cmu.edu/security/pgp-receive For latest version... -- Vince