Where do I find the 'safe sender list?'?

A 'search' for this in the Management section denied all knowledge of it, likewise 'email services' just 'e-mail commands' which doesn't have a 'help' option. 8-( Thanks to Informat and Suresh for your answers. Hope you can provide more assistance here? Best wishes, Alph - floundering... --

1) Many services (I think Yahoo is one of them) use the Address Book as the safe senders list, meaning anyone in the book is safe.