Opeing Encryption Documents other than MS Office mail account

Hi Vinay 

So, you CAN send this document to a personal email account. However, as I mentioned on a separate post of yours, because this is a user-defined label and user-defined labels cannot be opened on the web. 

So, in that scenario, the user will need to have a valid account to open the file on a desktop application like word or excel to open the file.

If you changed the label to give access to specific users/domains like in a trusted vendor scenario, that will not be a user-defined labeled and could be opened in the web app like word online.

You could use the any authenticated user option for encryption but I never recommend this option since it will allow the person you send the file to then forward the content and the new recipient, if authenticated, can open it.