Changing email adres

If I change my email adres in my account to another adres, will I have reconnect all the devices again?

Aha, … in extend to my question, the ‘reminder (herinnering)’ flow option, to what is coupled? To which agenda?

Now I am using a ‘non’ personal email adres, but my main adres is a gmail account. Wil it look to that agenda?