hi
As such Checkpoint do not offer the security to these protocols like SMTP etc but you can check the OPSEC products that can be integrated with Checkpoint and then you can make yout network more secure and you can scan various other protocols for antivirus and antispam.
You can also visit the following link:
http://www.opsec.com/ics/index.html I hope this will help you.
Regards
Ranjit