Mail2RDF enables you to use your favourite RSS news feed reader to see if new mail have arrived at your mail account.
It works by periodically check a mailserver (IMAP) for unread/unseen mail, and a RSS feed is produced from this. Your RSS news reader can then point to this RSS file, and hereby "scroll your mail by you" :-)
RSS news feeds are described by the W3C RDF standard. For an example of a RSS news reader, take a look at KDEs KNewsTicker (part of the kdenetwork package).