I have 2 servers: Old one Debian6 and new one Debian9, both have virtualmin.
Old server have 2 domains aaa.com and bbb.com
I moved bbb.com to new server and disabled it on old server (not removed). Made changes on hosting provider.
Now when I send e-mail to email@example.com from gmail or yahoo or other it coming to new server as need. But if send e-mail to firstname.lastname@example.org from old server domain email@example.com to firstname.lastname@example.org it still coming to old server.
Where and what I need to configure to let old server know he must send to new server???
Thank you in advance!