I read mail from Zoho in eM client. That is OK except one thing. In the map Sent the list of mails shows my name in the header and not the name of the receiver of the mail. This is only with my Zoho mail account. And yes: the names of the folders on the server and in eM are the same.
I have checked it in the Mail app from Apple: same account, same everything but in Mail the list of send mails in the folder Sent is shown correct with the name of receiver in the header and not the name of the sender (my name).
It is a bug in the communication between Zoho server (imappro.zoho.eu) and eM Client.