I've got a Ubuntu server set up with Postfix, it can send and receive emails just fine. However, I already have a widget on my computer which notifies me of new gmail emails. I'd like it to also notify me of mail to the server.
The easiest way (conceptually) I can see of doing this is to set the server to send a 'New Mail' message to my gmail account.
I don't want to just forward the mail, I want it to 'ping' in the same content-less kind of way facebook does.
Anyone have any ideas about how to do this?