1 User Multiple Accounts

1 User Multiple Accounts

I would like to have 1 user who can access multiple email accounts, each associated with a different domain. Here is my current situation:

1. I have one user (me) called rod@rodneyhowell.com Control Panel>User Details>Mail Accounts shows my default email as rod@thenatureofzen.com. I do not see a way to change this. Further down the page is "Mailbox Address" and next to it is the email address rod@thenatureofzen.com with "change" beside it. Clicking on change brings up a selector but the only option under the selector is rod@thenatureofzen.com. I want the email address to be rod@rodneyhowell.com.

2. At Control Panel>Mail Administration>Mail Accounts only 1 email address is listed and it's rod@thenatureofzen.com. I see no way to add rod@rodneyhowell.com (yes rodneyhowell.com has been verified and yes MX records point to Zoho).

3. However if I click on my account icon in the upper right corner of the screen, then click on Profile, then Click on Email Address, my primary email address is listed as rod@rodneyhowell.com

Please help me figure this out. I want rod@rodneyhowell.com as my primary email address for the entire account (to sign in to Zoho and do everything else) and I want an actual email box for rod@rodneyhowell.com.

Thank you so much for your help, I appreciate it!