Question : secure email pgp

Hi,

I'm just wondering how to secure email messages in the body and secure attachments. I heard of PGP but does the recipient need it as well. Is there an easier solution, better or cheaper? I use Thunderbird and I think some clients use Outlook or Outlook express.

PGP offers a free for personal use but I think under their terms I would be technically using for my business.

Thank you,
Victor

Answer : secure email pgp

the sender and the receiver both needs a PGP key, there is a thunderbird plugin called http://enigmail.mozdev.org/home/index.php that will setup pgp easily...I am not sure if this also applies to outlook users