You will need a separate Mixmax account for each email address that you use with Mixmax. Mixmax accounts are automatically created and associated with your email address when you enable Mixmax for that account.

To enable Mixmax on a second account, log in to that email account on your Chrome browser. If the Mixmax extension is already installed in Chrome, hover over the greyed-out Mixmax logo in the top right corner of Gmail. A box would appear asking you to sign in.

If the Mixmax extension isn't installed on your computer, you can install it from the Chrome Web Store.

For more details, check out how to switch between your Mixmax accounts.

To disable Mixmax for a specific account, log in to that account in Gmail. Hover your mouse over the Mixmax logo in the top right corner. At the bottom of the menu, you'll see Deactivate Mixmax for your email. Click this button.

Mixmax will now be disabled for that account. If you want to re-enable Mixmax, just hover your mouse over the Mixmax logo again.