CAF:GP:MailConnector:run():insideCycle

Via Portal monitoring-> Request Overview I see many entries regarding CAF:GP:MailConnector:run():insideCycle. It occurs every 30 seconds continually. Anyone were this is coming from and its use?

Starting Time Starting Date Request Name User ID Outbound Data Duration Component Entries Component with Largest Net Time Largest Net Time

12:44:05 PM Nov 15, 2008 CAF:GP:MailConnector:run():insideCycle Guest n/a 74989012 2500 CAF:GP:MailConnector:run():insideCycle 55