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I recently looked into this too. You can now do this from the control panel. Simply click on the email address link on the settings page (not very intuitive, as you think it is a normal email link), and an option to update it will appear.
@Causing Effect: You’re definitely right. I pointed this out to our design team, and they’re going to make it more clear by adding a small edit button next to the email address in the settings page.
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<br>Thanks for pointing it out!
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