Debugging check_rcpt (Anti-Relay)

The three scenarios that should be checked out are:

1) From INT to INT
2) From EXT to INT
3) From EXT to EXT

Evoke sendmail as:

root@somelinux:> sendmail -bt -d21.4
ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)

.D{client_addr}165.89.185.15
check_rcpt {email@foo.bar}

Open Relay Database is maintained here.