If you want to remove an email address from the "E-mails for tickets parsing" list so that the App stops parse the e-tickets from this address, you will need to do the following:
Open the "Profile" tab and go to "Settings"
Here find and tap on the "E-mails for ticket parsing" button
In the list that opens, find the email address and swipe it to the left so that the red "Delete" button appears. Tap this button to unlink email from the application.
Open the "Profile" tab and tap on the "Settings" button in the top right corner of the screen.
In the "General" section tap on the "E-mails for ticket parsing" button
In this list find the e-mail which you don't want to use anymore and to the right of it tap on the "X" button, to disconnect your e-mail address from the App.
CAUTION! If the "Delete" button on iOS or "X" button on Android does not appear, this means that email is used as one of the main connected accounts. In this case, you will need to disconnect your account first (you can read more about this here - link to the article "How to delete connected accounts?") and only then you can remove this address from the "E-mails for ticket parsing" list.