Sep 16 11:46:52 fresnel postfix/smtpd[22205]: NOQUEUE: reject: RCPT from unknown[192.168.92.221]: 554 <don.park@gmail.com>: Relay access denied; from=<info@lighthousepdx.org> to=<don.park@gmail.com> proto=ESMTP helo=<[192.168.92.221]>

fresnel:/var/log root# postconf | grep restrictions
smtpd_client_restrictions =
smtpd_data_restrictions =
smtpd_etrn_restrictions =
smtpd_helo_restrictions =
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
smtpd_sender_restrictions =

fresnel:/var/log root# postconf mynetworks
mynetworks = 192.168.92.0/24, 127.0.0.0/8

fresnel:/var/log root# postconf smtpd_client_restrictions
smtpd_client_restrictions =

fresnel:/var/log root# ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet6 fe80::230:65ff:fe4b:307c%en0 prefixlen 64 scopeid 0x4
        inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255