It is not so-called. 
We have provided a registry value that will overcome the issue on your email providerās server. It really does work.
No, MS may not allow you to setup a personal account as Exchange. I thought I already mentioned. Apologies, it may have been in another topic discussing this issue.
Just follow the instructions we provided, by applying the registry fix, then revoking the permissions on the MS page. It is really quite simple. You donāt even have to remove your email account from eM Client.