alpha:/var/spool/postfix# postconf -n
alias_maps = hash:/etc/aliases
config_directory = /etc/postfix
inet_interfaces = all
luser_relay = noreply@donedesk.com
mydestination = pcre:/etc/postfix/mydestinations
mynetworks = 50.56.93.179/32
myorigin = alpha.donedesk.com


Log
Jul 27 05:41:03 alpha postfix/smtpd[28598]: connect from chimx1.tribune.com[163.192.2.18]
Jul 27 05:41:03 alpha postfix/smtpd[28598]: NOQUEUE: reject: RCPT from chimx1.tribune.com[163.192.2.18]: 550 5.1.1 <test3@donedesk.com>: Recipient address rejected: User unknown in local recipient table; from=<chancock@tribune.com> to=<test3@donedesk.com> proto=ESMTP helo=<chimx1.tribune.com>
Jul 27 05:41:08 alpha postfix/smtpd[28598]: disconnect from chimx1.tribune.com[163.192.2.18]
Jul 27 05:42:58 alpha postfix/smtpd[28631]: connect from chimx1.tribune.com[163.192.2.18]
Jul 27 05:42:58 alpha postfix/smtpd[28631]: NOQUEUE: reject: RCPT from chimx1.tribune.com[163.192.2.18]: 550 5.1.1 <test4@donedesk.com>: Recipient address rejected: User unknown in local recipient table; from=<chancock@tribune.com> to=<test4@donedesk.com> proto=ESMTP helo=<chimx1.tribune.com>
Jul 27 05:43:03 alpha postfix/smtpd[28631]: disconnect from chimx1.tribune.com[163.192.2.18]