If you’re using a Mac, some of the juicer apps will open up an email from your campaign’s payment account. That’s what happened to me when I was trying to buy a certain amount of bitcoins on Coinbase. If you have several accounts on one device but don’t want to use them all at the same time, simply enable or disable
To turn off Mail, go to Settings Accounts & Passwords and change the account for which you wish to disable mail. Set Mail to disabled.
Open the Mail app on your iPhone or iPad’s Home screen. Select the mailbox where you’d like to relocate the message you want to delete. Edit the contents of the message(s). Choose Move. Select a new destination mailbox for the messages (if applicable).
To remove an email account, go to the Settings menu for it and choose “Delete Account.” On the confirmation dialog box that appears when you select “Delete Account,” tap “Delete Account” again.
Because Mail is essential for certain features, you won’t be able to turn it off. Delete the mail program from the list of applications that automatically launch when you log in to your user account in System Preferences Accounts Login Items.
