# This file tests we accept mail from specifically whitelisted senders 
192.168.0.1
220
EHLO remote.domain
250
# This email should be allowed through
MAIL FROM:<whitelisted@blacklisted.domain>
250 
# Always accept mail to the postmaster
RCPT TO:<postmaster@local.domain>
250
# We don't want to accept mail from this IP
RCPT TO:<local.user@local.domain>
250
RSET
250
QUIT
221
