Go to cPanel: click "Mail" - "MX entry", choose "Remote Mail Exchanger". Click "Add New Record"...
----- The following addresses had permanent fatal errors ----- (reason: 550 ... User unknown)...
Go to cPanel - "Mail" - "Email accounts" Find the mailbox you need and click "Password"....
Go to cPanel - "Mail" - "Email accounts". Complete all of the fields and click “create account”...
This is probably due to your quota being full. You will need to delete some of your mail to make...
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