Running Windows 2003 Domain. Exchange 2003 and Outlook 2003. Outlook is accessed via a Windows 2003 Terminal Server. Budget is not allowing an upgrade of our servers.
One of our clients is requiring that our emails with them are encrypted with PKI. We have a Barracuda appliance to filter for spam/viruses, but, per our client, the Barracuda email encryption service is not acceptable to send encrypted emails.
I can create a user certificate from out local domain Certificate Authority and then import the cert into Outlook. I tried sending an email to a gmail account, but Outlook balked since I didn't have the recipient's certificate.
To send an email, will the end user (client) have to send me a certificate and how would I import that so I can send encrypted email?
Is what I did, able to satisfy my client's request for PKI?
Is there a better way to do this? I have +/- 15 users that will have to send encrypted emails.