While he is making some changes why don't you give DeliverySlip a try.
Email Encryption | Secure File Sharing | Secure Electronic Signatures
Enter your email below and we’ll send you a secure message to get you going. No MX records to change or complicated settings to edit, just email security and encryption for your cloud-based email. Expect a secure message in your email inbox from me (Wilson) within the hour. This secure message will have instructions on how to maximize your experience.