dnf install dovecot
/etc/dovecot/dovecot.conf
# Protocols we want to be serving.
protocols = imap pop3 lmtp submission
listen = *, ::
/etc/dovecot/conf.d/10-mail.conf
mail_location = maildir:~/Maildir
/etc/dovecot/conf.d/10-auth.conf
disable_plaintext_auth = yes
auth_username_format = %n
auth_mechanisms = plain
Use a mail clien link thundebird ussername would be linda@domainname and server would be FQDN of server