using keys with multiple users

[Jeroen Valcke]

Hello,

I use GnuPG at work. My question is how can you use GnuPG with different
people. For example you have the following situation. I receive and send
mail using the following aliases
	jeroen.valcke@MyCompany.com
	support@MyCompany.com
	hostmaster@MyCompany.com

Mails sent as hostmaster are CC'ed to everybody in the hostmaster group.
The same is true for support.

Currently I only encrypt/sign mail with my own address
(jeroen.valcke@MyCompany.com).

I was wondering how we could encrypt/sign messages as
hostmaster@MyCompany.com and support@MyCompany.com

Does anybody work with such a setup?

Thanks,

-Jeroen-

-- 
Jeroen Valcke               jeroen@valcke.com