Their is a lot of complexity to implementing a Zixmail-type solution.  The outbound gateway device or function has to intercept the restricted message and redirect it to a web server.,   Then the web server needs to send the user a replacement message instructing him to connect to the web server to create an account and pick up his mail.   On all the known implementations, this is a cloud-based website provided by the application vendor, not an on-premise solution.   Up to this point, SmarterTools has not attempted to be a cloud service vendor, and it strikes me as a money-loser for them.

I suggest buying a Barracuda appliance.   The appliance is capacity-limited, which is reasonable, rather than per-user-licensed, which gets expensive quickly.

There is a LOT of support and maintenance, security, user training, updates and testing, etc that goes along with cloud hosting a solution like SmarterMail and I'm betting thats the biggest detractor for us Doug. Maybe in the future!

Just an update or check-in....

Is anyone using ZIX or something comparable???   We host some entities that are wanting to implement.

Just on a note...

What about a solution that only lets you open en email in outlook or webmail if you use the code sent via a phonenumber?

A simple solution that will cover everything people need

I think this should stay with dedicated solutions such as Seppmail, Ciphermail, Zertificon etc.

Brian, anyone can implement file based encryption today, by using password-protected files as attachments.   But files have no beakin evasion defenses, so an attacker can try as many times as he wants.   Secure email solutions are designed to ensure a trusted connection for message drop-off, message storage, and message pickup.  Encrypted attachments add additional protection against account compromise, so they are desirable for defense-in-depth.