It seems that I am getting daily pop3 restarts and checking the log indicates a "database error"
2012:12:16-22:45:30 ******** pop3proxy[16233]: Client 192.168.2.*** logged out (account=3, deleted=0)
2012:12:16-22:45:30 ******** pop3proxy[16234]: Client 192.168.2.*** logged out (account=2, deleted=0)
2012:12:16-22:48:27 ******** pop3proxy[15182]: Database error:
2012:12:16-22:48:39 ******** pop3proxy[16957]: Master started
during the same time ,kernel complains for memory issue which should be related to https://community.sophos.com/products/unified-threat-management/astaroorg/f/52/t/28674
2012:12:16-22:48:04 ****** kernel: [173304.071743] Out of memory: Kill process 16881 (postgres) score 360 or sacrifice child
2012:12:16-22:48:04 ******* kernel: [173304.071750] Killed process 16881 (postgres) total-vm:2012896kB, anon-rss:1101272kB, file-rss:10224kB
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