Log in to your M3 Admin Control Panel
EXAMPLE: https://servernamehere.m3xs.net/adm/
Note: Put your server name where it says yourservername in the example URL above.
1. Click Email
2. Click List
3. Select the Domain that the Email is assigned to.
4. To the right of the email address Click Remove Address
5. Click Confirm
You have removed the Email Address
Click Here to Add an Email Adress Mailbox