git: 9front

ref: f1e5c17b3213af6ee546e79323ddfcf9c29e0131
dir: /sys/src/cmd/upas/smtp/

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