Hosted Exchange server (Exchange 2013 and up)
While you should be wondering (in my opinion) if you want to run your own hosted Exchange environment instead of reselling Office 365, the following articles are still valid. Also, things have not changed much for Exchange 2016 and Exchange 2019 so you can follow these guidelines. However, I haven’t done much lately with Hosted Exchange so I’m not sure how it works out.
- Multi-Tenancy and Hosting Guidance for Exchange Server 2013 – http://www.microsoft.com/en-us/download/details.aspx?id=36790
- Multi-Tenant Scalability Guidance for Exchange Server 2013 – http://www.microsoft.com/en-us/download/details.aspx?id=39941
- Multi-Tenant support – http://technet.microsoft.com/en-us/office/dn756468
Exchange 2010
- Multi-Tenancy and Hosting Guidance for Exchange Server 2010 SP2 – http://www.microsoft.com/en-us/download/details.aspx?id=28192
- Exchange 2010 SP2 Multi-Tenant Scale Guidance – http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=28565
- Multi-Tenant Support – http://technet.microsoft.com/en-us/office/dn756395
Jaap Wesselius 