This Google Apps script will move Gmail e-mails matching defined search queries to trash.
More info on Gmail Queries Given below.
Create a Google Apps Script project at https://script.google.com/ using the content of delete-old-gmail.gs.
Update delete_queries array to match your needs.
Save, then run function requestPermission to get the appropriate permissions.
After that run function addTriggers to add triggers that will execute the cleaner first after 6 minutes, then once per day.
It will move 500 e-mail conversations/threads to trash per execution. If there are more e-mails to be moved, it will add another trigger after 6 minutes and continue to do so until it is done.
Pull request are welcome.