encryption for Outlook/Exchange?

[Kremlar]

We're looking for some options to encrypt emails either automatically or very easily on Outlook and/or Exchange. Ideally, we envision something with either an Outlook plug-in that makes it super easy for users to encrypt outgoing emails, and/or something on the server-end that automatically encrypts based on policies (attachment types, etc.)

We have a ~50-user network with a single Exchange 2007 box, but are willing to add a server if needed.

Ideally we're looking for something in-house (hardware and/or software).

Anyone use anything worth checking out?

If nothing in-house, any cloud-based services that anyone could recommend?

Thanks

 

[Bashbelly]

We use Zix. It is cloud based but forces recipients to have a log in with the company to decrypt the emails.

 

[JackMDS]

http://office.microsoft.com/en-us/outlook-help/encrypt-e-mail-messages-HP001230536.aspx

 

[Kremlar]

I'm taking a look at this which looks like it might do exactly what we need:

http://www.djigzo.com/

 

[JoJoDawg]

We use a Cisco Ironport c150 appliance.