Hi
We have a Small Business Server 2011, and 4 user machines running Windows 7 and Outlook 2007.
Email encryption is becoming an issue for us, with companies starting to ask that emails containing sensitive data are encypted.
I was planning on setting up S/MIME certificates for each of the 4 user mailboxes, however we also have a lot of client mailboxes (over 100 of the formatclient1@mydomain.com, client2@mydomain.com, etc) which would need to be able to receive encypted emails (no need to send). With an annual cost of c. £7 per S/MIME certificate, I can convince the boss to get the certificates for each of the 4 user mailboxes, but not for the 100 client mailboxes.
Does anyone know what options I have?
Can I use one certificate to all the client mailboxes (my guess is no, and that each certificate can only be associated with one email address)?
Can I buy a certificate for mydomainname.com, and then issue the certificates for the user and client mailboxes myself?
Thanks
Rick