How to cancel Mailgun
Here’s how to cancel your account…
Go to http://www.mailgun.com, click on the “Login” button in the top right corner.
Once logged in to the account you wish to cancel, click on your email address in the top right corner to bring up your account information.
On the Account Information page, click on the “Request Cancellation” button.
Note: Canceling your account will delete the account and all associated data permanently.