If you want to remove an email address from the "E-mails for tickets parsing" list so that the App stops processing e-tickets from that address, you 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 to see a red "Delete" button. Tap this button to unlink the email from the app.
Open the "Profile" tab and click the "Settings" button in the upper right corner of the screen.
In the "General" section, tap on the "E-mails for ticket parsing" button.
In this list, find the email you no longer want to use, and to the right of it, click the "X" button to disconnect the email address from the app.
WARNING: If the "Delete" button on iOS or the "X" button on Android does not appear, it means that the e-mail is used as one of the main connected accounts. In this case, you must first disconnect the account (read more about this here -"How to delete connected accounts?") and only after that, you can remove this address from the list of "E-mails for ticket parsing".