[root@uran log]# grep 428239006C /var/log/maillog
Mar  3 17:11:32 uran postfix/smtpd[22149]: 428239006C: client=unknown[192.168.10.1]
Mar  3 17:11:32 uran postfix/cleanup[22150]: 428239006C: message-id=<20150303161058.D845184@g4t3433.houston.hp.com>
Mar  3 17:11:32 uran postfix/qmgr[3869]: 428239006C: from=<csncarepack@hp.com>, size=4312, nrcpt=1 (queue active)
Mar  3 17:11:39 uran postfix/pipe[22151]: 428239006C: to=<cernak.peter@localhost.ppsgroup.sk>, orig_to=<cernak.peter@ppsgroup.sk>, relay=spamassassin, delay=7, status=sent (uran.ppsgroup.sk)
Mar  3 17:11:39 uran postfix/qmgr[3869]: 428239006C: removed