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Tool for encrypting emails to a partner

We are an Outlook/Exchange 2010 house.  One of our business partners wants us to encrypt all communications.  I have used PGP and GPG in the past for out-of-company encryption.  But that was like five years ago.  Does Microsoft have a tool (included in Enterprise agreement?) that would  achieve the objective of being able to easily encrypt messages being sent out of the corporate Exchange server and into another company's mail system?  Thank you.
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amigan_99
Asked:
amigan_99
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1 Solution
 
AlienwalkerCommented:
In the message, on the Message tab, in the Options group on the ribbon, click the Encrypt Message Contents and Attachments button .

 Note   If you don't see this button, click the Options Dialog Box Launcher in the lower right corner of the group to open the Message Options dialog box. Click the Security Settings button and in the Security Properties dialog box, select Encrypt message contents and attachments. Click OK and then close the Message Options dialog box.
Compose your message and send it.

To encrypt all outgoing mail.
On the Tools menu, click Trust Center, and then click E-mail Security.
Under Encrypted e-mail, select the Encrypt contents and attachments for outgoing messages check box.
To change additional settings, such as choosing a specific certificate to use, click Settings.
Click OK twice.

I hope this helps
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AlienwalkerCommented:
This is if you choose to encrypt messages using Outlook.  
If not hopefully someone else has a suggestion.

Alienwalker.
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amigan_99Author Commented:
Thanks Alien.  So when the partner at the other company receives the mail - how do they go about decrypting the message?
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AlienwalkerCommented:
In order to send encrypted messages over the Internet, you need to swap certificates (
.cer files) with the recipient. You can do this a number of ways.
For example:
Send a digitally signed message. The recipient adds your e-mail name to Contacts and in doing so also adds your certificate.
Send a message with your .cer file attached or give a floppy disk with the .cer file. The recipient can import the .cer file into your contact card.
Create a contact card with your .cer file, and then send the contact card.
Publish your certificate to an LDAP directory or another directory that is
available to the other person.
Post the certificate on a share that is available to the other person.
If your system administrator has set up security for your network using Microsoft Exchange Server, it is not necessary to swap certificates.
3DES is the default encryption algorithm. Encryption strength is no longer
restricted by the United States government. Microsoft Outlook uses the RC2 algorithm by default when running on a 40-bit operating system that does not have 128-bit encryption capabilities.

Alien
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amigan_99Author Commented:
Great - thank you.
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