Seen this before?

[barcajax () gmail com]

I was testing SniffPass. I left SniffPass running and starting surfing the Internet using Firefox. I also had Windows 
Live Messenger running. I got the following entry in SniffPass and am quite surprised.
==================================================
Index             : 1
Protocol          : IMAP
Local Address     : 203.208.205.16
Remote Address    : <Laptop IP>
Local Port        : 80
Remote Port       : 2490
User              : bar
Password          : styles
Capture Time      : 8/27/2007 1:27:49 PM
==================================================
I do not use email clients and only use web-based email so I'm not sure how this traffic came about. I did a look-up on 
the remote address but nothing turned up. Anyone seen this before or know what this is?