To use a secure email service, you would also need to get the consultant on the same service, you're not going to be able to use an encrypted email service and securely email something to a generic email address like Gmail/Hotmail/Yahoo/etc.
Since one of the meaningless use items was to successfully send records to another provider, which would generally mean a consultant, who probably does not have Updox, then I would still need to find or purchase an email surface that provides for encryption. But for a one time attestation in Stage 1, I could just find an Updox user and satisfy the test.
Donald Phillips MD Cedar Hill, Tx