Greylisting Question

Hi all,

please can one help me with the folloing issue.

LOG:

2006-12-22 00:00:45 1GxWu1-0000Nv-WD SA: Action: temporarily rejected 
message: score=5.2 required=5.0 trigger=1.5

2006-12-22 00:05:08 1GxWyG-0000Oy-UF SA: Action: temporarily rejected 
message: score=5.2 required=5.0 trigger=1.5

2006-12-22 00:40:18 1GxXWI-0000fy-Gv SA: Action: scanned but message 
isn't spam: score=3.7 required=5.0

LEVELS:

SAtempreject: 1.5
SApermreject: 10.0
SAgreylistraisetempreject: 5.0

QUESTION:

The message was put in the Mailbox at the third try though score=3.7. I 
thought the score should be bellow SAtemprject (in my case 1.5) to be 
deliverd.

Thanks Erwin