By default the command:

 

Tail -f /var/log/qmail/qmail-smtpd/current

 

produces lines like:

 

@40000000496b1af2038da524 tcpserver: ok 32154 tempest.mckenziefamily.biz:192.168.2.30:25 :87.228.26.245::59479
@40000000496b1af203c0cae4 rblsmtpd: 87.228.26.245 pid 32154: 451 http://www.spamhaus.org/query/bl?ip=87.228.26.245
@40000000496b1af203cacd64 tcpserver: end 32154 status 0
@40000000496b1af203cc484c tcpserver: status: 0/30
@40000000496b2500371a9b04 tcpserver: status: 1/30
@40000000496b25003727ed2c tcpserver: pid 313 from 92.125.160.79
@40000000496b250116926394 tcpserver: ok 313 tempest.mckenziefamily.biz:192.168.2.30:25 b-internet.92.125.160.79.snt.ru:92.125.160.79::2725
@40000000496b250119b2cdd4 rblsmtpd: 92.125.160.79 pid 313: 451 http://www.spamhaus.org/query/bl?ip=92.125.160.79
@40000000496b250119bdf164 tcpserver: end 313 status 0
@40000000496b250119bf9b2c tcpserver: status: 0/30

However if you use:

 

tail -f /var/log/qmail/qmail-smtpd/current | tai64nlocal

 

You will get a timestamped log like this

 

2009-01-12 21:26:48.059614500 tcpserver: ok 32154 tempest.mckenziefamily.biz:192.168.2.30:25 :87.228.26.245::59479
2009-01-12 21:26:48.062966500 rblsmtpd: 87.228.26.245 pid 32154: 451 http://www.spamhaus.org/query/bl?ip=87.228.26.245
2009-01-12 21:26:48.063622500 tcpserver: end 32154 status 0
2009-01-12 21:26:48.063719500 tcpserver: status: 0/30
2009-01-12 22:09:42.924490500 tcpserver: status: 1/30
2009-01-12 22:09:42.925363500 tcpserver: pid 313 from 92.125.160.79
2009-01-12 22:09:43.378692500 tcpserver: ok 313 tempest.mckenziefamily.biz:192.168.2.30:25 b-internet.92.125.160.79.snt.ru:92.125.160.79::2725
2009-01-12 22:09:43.431148500 rblsmtpd: 92.125.160.79 pid 313: 451 http://www.spamhaus.org/query/bl?ip=92.125.160.79
2009-01-12 22:09:43.431878500 tcpserver: end 313 status 0
2009-01-12 22:09:43.431987500 tcpserver: status: 0/30