After purchase of a new pc with preinstalled win11. I connect to my mailprovider.
Fyg on my old pc with win10 it was ok.
Other email program works ok Thunderbird ??
Did you use the built-in eM Client backup on the Win 10 PC , and then restore that backup in eM Client on your Win 11 ?
It’s working on Windows 11 for me. I have version 10.1.4588.
If you could post some information (error messages, symptoms) about your problem, someone might be able to help.