If you want to remove your account on Hushmail, a web-based email service, you’ll see in this manual that you can easily do that in the Settings of your account.
I’ll show you below some pictures on how I managed to delete my profile using a desktop computer.
1 Go to https://www.hushmail.com/
and log in by entering your Hushmail address and password.
2 Select Preferences (right top corner)
3 You’ll arrive in the About you tab
Look for the Account type section => You’ll find the Close your account link there.
4 Last step – Indicate why you want to remove the account
and type in your passphrase to authorize the request for cancellation.
=> Click on the button: Close firstname.lastname@example.org forever
You’ll be logged out automatically and your account has been removed.
*Source (& thanks to): hushmail.com