Can you tell me what part of this log tells me what the rule is?

2010-05-31 12:26:04 magicspam-plesk[12784]: HAM: mua=0,ip=[208.49.45.101:mail2.owenreollc.com],helo=<mail2.owenreollc.com>,from=<scline@owenreollc.com>,rcpt=<phil@derryteam.com>

I am assuming you want me to post the entire log. So here it is. 2010-05-31 12:17:00 magicspam-plesk[28177]: SPAM[block_lists:36]: mua=0,ip=[78.48.50.139:f048050139.adsl.alicedsl.de],helo=<alicedsl.de>,from=<rivuxaw3105@alicedsl.de>,rcpt=<ray@goray.com> 2010-05-31 12:17:02 magicspam-plesk[28253]: SP...

Some of my customers are complaining that some email coming to them is being returned as undeliverable. The undeliverable email appears to be valid. How can I control this?