End-toEnd Encryption of emails

Hello

In Thunderbird client I read the following in the accounts' config panel "End-to-End encryption":

"End-To-End Encryption
Without end-to-end encryption the contents of messages are easily exposed to your email provider and to mass surveillance,
To send encrypted or digitally signed messages, you need to configure an encryption technology, either OpenPGP or S/MIME.
Select your personal key to enable the use of OpenPGP, or your personal certificate to enable the use of S/MIME. For a
personal key or certificate you own the corresponding secret key."

I am really ignorant on this topic therefore sorry for the following  maybe silly question...

In order to use the End-to-End encryption for emails, do I need to do anything/setup stuff in the server/mailserver/CWP?

Ty in advance for any info and help

I think you can find detailed answers about ETEE on the FAQ section of the Thunderbird's website here:
https://support.mozilla.org/en-US/kb/openpgp-thunderbird-howto-and-faq

Actually, you don't need to install any extra software on the server to support ETEE. You just need to add/import keys (public/private) to each mail application you use to manage emails.