Client side email encryption

["Quigley, Joe" <Joe.Quigley () informausa com>]

Hello everyone,

I've been tasked with finding an encryption solution for email sent from
our HR departments to both internal and external clients. We are
currently running MS Exchange 2003/Outlook 2003 and 2007. We have no
plans to install Exchange 2007 at this time. One requirement we have is
it must be installed on the client. We don't want to install anything on
the mail servers. 

PGP/GPG is one option. Is anyone using a different product for client
side encryption with Outlook?

Thank in advance for your time,

Joe