git: 9front

ref: a30f99a4e64b55d80e9bd0d4485972a20bfa2a95
dir: /sys/src/cmd/upas/smtp/

greylist.c
mkfile
mxdial.c
parsetest.c
rfc822.y
smtp.c
smtp.h
smtpd.c
smtpd.h
smtpd.y
spam.c