Recently, i have some weird "pop3 command" in my GWIA log file. I suspected this is causing by spammer and i have been disabled pop3 after that.

Anyone have the same issue?

Below is the sample log i copied out from GWIA log:

06:29:04 264 POP3 command: PASS
06:29:05 264 POP3 command: user webpop
06:29:05 264 POP3 command: PASS
06:29:05 264 POP3 command: user technicom
06:29:05 264 POP3 command: PASS
06:29:06 264 POP3 command: user susan
06:29:06 264 POP3 command: PASS
06:29:06 264 POP3 command: user sunsun
06:29:06 264 POP3 command: PASS
06:29:07 264 POP3 command: user sunny
06:29:07 264 POP3 command: PASS
06:29:07 264 POP3 command: user steven
06:29:07 264 POP3 command: PASS
06:29:08 264 POP3 command: user search
06:29:08 264 POP3 command: PASS
06:29:08 264 POP3 command: user sara
06:29:08 264 POP3 command: PASS
06:29:09 264 POP3 command: user robert
06:29:09 264 POP3 command: PASS
06:29:09 264 POP3 command: user richard
06:29:09 264 POP3 command: PASS
06:29:10 264 POP3 command: user postmaster
06:29:10 264 POP3 command: PASS
06:29:10 264 POP3 command: user party
06:29:10 264 POP3 command: PASS
06:29:11 264 POP3 command: user michael
06:29:11 264 POP3 command: PASS
06:29:11 264 POP3 command: user amanda
06:29:11 264 POP3 command: PASS
06:29:12 264 POP3 command: user mysql
06:29:12 264 POP3 command: PASS
06:29:12 264 POP3 command: user rpm
06:29:12 264 POP3 command: PASS
06:29:13 264 POP3 command: user operator
06:29:13 264 POP3 command: PASS
06:29:13 264 POP3 command: user sgi
06:29:13 264 POP3 command: PASS
06:29:14 264 POP3 command: user Aaliyah
06:29:14 264 POP3 command: PASS
06:29:14 264 POP3 command: user Aaron
06:29:14 264 POP3 command: PASS
06:29:15 264 POP3 command: user Aba
06:29:15 264 POP3 command: PASS
06:29:15 264 POP3 command: user Abel
06:29:15 264 POP3 command: PASS
06:29:16 264 POP3 command: user Jewel
06:29:16 264 POP3 command: PASS
06:29:16 264 POP3 command: user sshd
06:29:16 264 POP3 command: PASS
06:29:17 264 POP3 command: user users
06:29:17 264 POP3 command: PASS
06:29:17 264 POP3 command: user admins
06:29:17 264 POP3 command: PASS
06:29:18 264 POP3 command: user admins
06:29:18 264 POP3 command: PASS
06:29:18 032 DMN: MSG 10344 Accepted connection: