That worked like a charm, you are a life saver.
While I have you, quick question - is there any configuration I have to do with mailgun (or mail server equivalent)? Right now the mails are still sent from mailgun with mysite.co email address, rather than from (the newly migrated) mysite.com.au.
I don’t mind if the emails come from mysite.co, I’m more concerned as to whether there are any risk/unintended consequences if the domain names don’t match up between the forum and mailgun.
Thanks for the help, once again.