root@vps23:~# tail /var/log/mail.log
Dec 28 01:35:44 vps23 postfix/smtpd[10282]: NOQUEUE: reject: RCPT from mail-vk0-f46.google.com[209.85.213.46]: 550 5.1.1 <hi@b2c.me>: Recipient address rejected: User unknown in local recipient table; from=<b2cnizam@gmail.com> to=<hi@b2c.me> proto=ESMTP helo=<mail-vk0-f46.google.com>
Dec 28 01:35:45 vps23 postfix/smtpd[10282]: disconnect from mail-vk0-f46.google.com[209.85.213.46]
Dec 28 01:39:01 vps23 postfix/pickup[10280]: 728832058C: uid=0 from=<root>
Dec 28 01:39:01 vps23 postfix/cleanup[10318]: 728832058C: message-id=<20151227193901.728832058C@mx.b2c.me>
Dec 28 01:39:01 vps23 postfix/qmgr[10281]: 728832058C: from=<root@b2c.me>, size=39955, nrcpt=1 (queue active)
Dec 28 01:39:01 vps23 postfix/local[10320]: 728832058C: to=<root@b2c.me>, orig_to=<root>, relay=local, delay=0.05, delays=0.03/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Dec 28 01:39:01 vps23 postfix/qmgr[10281]: 728832058C: removed