Oh sorry, I didn't realize I actually just should switch to kind of reset Postfix.
I did now, though it didn't do me any favor. :(
Mar 3 22:28:00 #server_name# dovecot: imap-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges
Mar 3 22:28:00 #server_name#...