SILVASURFER  As a registered user I have been using this app now for close to 18 months and nothing comes close to it for spam catching & protection. No it won't solve all your spam issues (what does?) but it is the best mac program out there. Recommend to all my friends who have switched and or bought new macs and they are very impressed. Constantly update, good documentation and a responsive developer.

A must have app for you Mac!  
(Version 2.7.1)

SILVASURFER  Excellent software! Worked flawlessly with a new MacBook and a 9 year old hotmail account updated to hotmail live. Good documentation and ease of use. Upcoming two way synchronisation will make it even better and a few other features would easily make me pay for this. Well done to the developer and many thanks for the Leopard update.   
(Version 1.50)

SILVASURFER  Install this at your own risk. Upon installing this on my G4 Powerbook it crashed it and sent me on a blue screen of death for about an hour and when finally I got it up and running my airport card had been disabled! Head on over to Apple.com Leopard discussions to read about this update and how it has affected others.   
(Version 1.0)

SCOTT LANEY  As a registered user of Steel I am very pleased with the overall package. It does what it is supposed to do and well. Only comment I would make is that it has not been updated now for over a year and we have had no word from the developer. Shame, because with a few more added features it would be at the top of the class.  
(Version 1.1.5)