Does this resemble your ISP, pol.co.uk ?
If so are you using a P2P program ? - Azureus perhaps ?
Do you have a firewall, if so what ?
I don't know what the pol stands for.
I use utorrent and it does seem to trigger the event when this is running,but if this is the case why does it say mail scanner and not p2p.
Never used to see the icon flash up.
Using Sygate Personel Firewall at the moment.
The pol stands for Planet On Line I believe, I have seen this type of activity in other P2P programs namely Azureus and the reason the mail scanner gets involved is because it or another peer is truing to connect using an email port which avast's email scanner is monitoring. Usually this would cause a connection timeout warning.
I'm sorry I don't use any P2P program, so I have no idea of the set-up for utorrent on communication ports, etc.
Take a look at this thread and see if you can apply the same logic/settings to utorrent.
Check out this Thread
http://forum.avast.com/index.php?topic=18105.0and this post in particular
http://forum.avast.com/index.php?topic=18105.msg154105#msg154105Sygate also has a problem in that it may report localhost proxy activity but not the program that is using the proxy, so there are occasions when it will report the web shield connecting to the internet when it is the browser using the proxy to connect. This masks programs as you allow web shield access so by default anything using the proxy gets through because Sygate only sees the proxy.
How to disable transparent web shield proxy and allow only those browsers you want use it:
In avast! go to Web Shield provider, Customize..., Basic tab, blank the redirected HTTP port field (remove the 80). Now no browser can use web shield unless you manually configure it to use Web Shield.
However, since Sygate is no longer being developed, perhaps it is time to look for another firewall that doesn't have this issue with localhost proxy.