Shorewall users - Nov 2008 - Accept only "smtp.gmail.com" and "pop.gmail.com", how i could do that?

Hi, i would like accept only smtps and pop3s on my OS and i only want to
know how accept "smtp.gmail.com" and "pop.gmail.com" in my
icedove.

I allow the IPs (pop.gmail.com, smtp,gmail.com) but the connection
doesn''t
works, what i could allow? I know how to use my firewall (it works allowing
all smtps and pop3s connections), so i would like to learn how allow
specifically these connections.

Thank you very much, I appreciate your help. I need help, so i have posted
in several mailing lists, i just wish that i could be forgiven.