Your Titan Mail plan can be easily Upgraded at any time by opening the Emails section and selecting your domain:

And clicking Upgrade plan:

Or you can click on Buy Email Accounts from your email account’s management section:

You will be presented with a pop-up window, where you will be able to upgrade your Business plan to Enterprise with just one click:

That’s it, now you know how to upgrade your Business plan to Enterprise 😊

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