How to change your Twitter email
Log in to twitter.com and go to your Account settings page by clicking the more icon and then Settings and privacy. Click Your account. Click Account information and enter your password. Click Email
How do I remove my email from Twitter?
Click the “not my account” link that appears in the confirmation email we sent to your email inbox. You will be taken to a page that shows a screen asking you to confirm the removal of your email from that specific Twitter account.