Hello,  

          I had up until recently, the free version. I got a warning message that said, "The user account (Redacted email address) 6.02 GB in your organization is almost nearing the allocated storage of 5.00 GB. If the storage exceeds the allowed limit, the account will be blocked for incoming emails and will not receive emails." Shortly after that, I got 2 separate emails, The first said all incoming emails were blocked. The second outgoing emails were blocked. Now I like the service so far, and I'm still learning about it, but in order to keep it running like it was when I first signed up, I realize I'm going to have to pay for some sort of membership. First question I have is what is the best suggestion as far basic annual membership for a startup Notary business? Also, what is the best video tutorial on how to use Zoho mail, and fully understnad its features? The best viideo will help me to make an informed decision. I found a bunch of videos here, but don't know which one to choose: https://www.youtube.com/results?search_query=zoho+mail+full+basic+tutorial