Sep 18 15:32:35 mailserver-xxzx-hq postfix/smtpd[114223]: disconnect from mail.dang.com[10.230.124.209]
Sep 18 15:32:35 mailserver-xxzx-hq postfix/local[114229]: 5292110B4D4D: to=adminmail@dang.com, relay=local, delay=0.06, delays=0.05/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to maildir)
Sep 18 15:32:35 mailserver-xxzx-hq postfix/qmgr[111133]: 5292110B4D4D: removed
Sep 18 15:34:04 mailserver-xxzx-hq postfix/smtpd[114223]: connect from mail.dang.com[10.230.124.209]
Sep 18 15:34:04 mailserver-xxzx-hq postfix/smtpd[114223]: EDE1D10B4D4D: client=mail.dang.com[10.230.124.209], sasl_method=LOGIN, sasl_username=adminmail
Sep 18 15:34:05 mailserver-xxzx-hq postfix/cleanup[114228]: EDE1D10B4D4D: message-id=5ba0aa6c.ZGX+DTbk7rm1Pmv0%adminmail@dang.com
Sep 18 15:34:05 mailserver-xxzx-hq postfix/qmgr[111133]: EDE1D10B4D4D: from=adminmail@dang.com, size=492, nrcpt=1 (queue active)
Sep 18 15:34:05 mailserver-xxzx-hq postfix/smtpd[114223]: disconnect from mail.dang.com[10.230.124.209]
Sep 18 15:34:05 mailserver-xxzx-hq postfix/local[114229]: EDE1D10B4D4D: to=root@dang.com, relay=local, delay=0.05, delays=0.05/0/0/0.01, dsn=2.0.0, status=sent (delivered to maildir)
Sep 18 15:34:05 mailserver-xxzx-hq postfix/qmgr[111133]: EDE1D10B4D4D: removed
[root@mail ~]# echo "hello,world" | mail -s "title" root@dang.co