Repeated connections to port 25 with firewall

[Jonathon McKitrick]

This is probably a simple question with a simple answer, but I wasn't sure
where to look.

I recently installed a deny-all firewall and everything is working fine.
However, I keep getting /kernel log messages about attempts to connect to
port 25.  Are these just various processes trying to mail their results to
root, but can't because of the firewall?  Or maybe cron doing the same thing?

May 24 08:00:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:1101 flags:0x02
May 24 08:00:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:2270 flags:0x02
May 24 08:05:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:4230 flags:0x02
May 24 08:10:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:2687 flags:0x02
May 24 08:15:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:3274 flags:0x02
May 24 08:20:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:1542 flags:0x02
May 24 08:25:00 neptune /kernel: Connection attempt to TCP 127.0.0.1:25 from
127.0.0.1:3652 flags:0x02


jm
-- 
My other computer is your windows box.