git: 9front

ref: da9e70c17a697ae1b83df9d9bd19f9fb2980fa0d
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