

Users can't use S/MIME signing and encryption with a personal account such as

Secure/Multipurpose Internet Mail Extensions (S/MIME) provides an added layer of security for email sent to and from an Exchange ActiveSync (EAS) account.

Users can't use S/MIME signing and encryption with a personal account such as
Secure/Multipurpose Internet Mail Extensions (S/MIME) provides an added layer of security for email sent to and from an Exchange ActiveSync (EAS) account.