About question 1, I don't quite understand the problem you describe. But I guess those information below may be useful to you:
- One Office 365 tenant could have multiple subscription licenses, such as in my lab, I have "Microsoft 365 Business Standard" and "Microsoft 365 E3" license:
- One subscription license contains multiple products in it, you could assign the product you want to specific user. You can also assign two licenses to one accout.
3. If your organization has a paid subscription to Microsoft 365, Microsoft Dynamics CRM Online, Enterprise Mobility Suite, or other Microsoft services, you have a free subscription to Microsoft Azure Active Directory.
About question 2
For GoDaddy which supported IMAP protocol, Microsoft 365 provides the way to migrate it with IMAP.
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