[MM3-users] Re: After importing my old databases, the mail local_recipient map is suddenly not working any more

systemctl stop mailman3 systemctl stop mailmanweg

mysqldump mailman3 > mailman3-olddomain.sql sed "s/olddomain/newdomain/g" mailman3-olddomain.sql > mailman3-newdomain.sql mysql mailman3 < mailman3-newdomain.sql

systemctl start mailman3 systemctl start mailmanweg

solved my problem of "how to change the mail domain name".