[squid-users] Odd Logs

Hello all I am going through my squid logs and have noticed a lot if
weird requests coming in.
Here is a snippet:

138.89.169.242 - - [27/Oct/2002:00:01:01 -0500] "CONNECT
mx1.mail.yahoo.com:25 HTTP/1.0" 200 271 TCP_MISS:DIRECT [User-Agent:
Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\nCache-Control:
private,no-cache\r\nPragma: no-cache\r\n] []
138.89.169.242 - - [27/Oct/2002:00:01:02 -0500] "CONNECT
mx2.mail.yahoo.com:25 HTTP/1.0" 200 276 TCP_MISS:DIRECT [User-Agent:
Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\nCache-Control:
private,no-cache\r\nPragma: no-cache\r\n] []
138.89.169.242 - - [27/Oct/2002:00:01:04 -0500] "CONNECT
mx2.mail.yahoo.com:25 HTTP/1.0" 200 271 TCP_MISS:DIRECT [User-Agent:
Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\nCache-Control:
private,no-cache\r\nPragma: no-cache\r\n] []

Any ideas why I would have a request from port 25 coming in?

AJ
Received on Mon Oct 28 2002 - 11:24:33 MST