No. All users in an account have to be on the same plan.

A plan is assigned to an account, and you can then have as many users on that account as you want, but they all use the same plan.

You can have as many accounts as you like, but each account will require its own unique domain name. If you have the need for different domain names and different plans, then you should create new accounts for each domain name. If the domains need the same resources, then you can put multiple domains under one account.

ShareSync is our File backup, Syncing and Collaboration tool. It will keep all the files in your main folders (Documents, Music, Pictures, Video, My ShareSync, Desktop - or as set by your admin) backed up. You can then access those files from anywhere with an internet connection. Your files will also automatically sync between your desktop, laptop and mobile devices. Then there are two cool features, the first is email attachment link replacement. Using Outlook, it will automatically replace any large (or all) attachment (as set by your company admin) and replace it with a link, putting the file in your My ShareSync folder. Your recipient will then be able to download the file and not have it cluttering up everyone's mail server, and possibly bouncing back. The second cool feature is that you can collaborate with internal or external parties on folders/files. The system will tell you if someone is editing the file, so you don't overwrite each other's edits. Another cool bonus is the fact that it keeps version history and so all of your files have protection against ransomware attacks, in that you will be able to recover your files if they get encrypted.