Receive a todo request in Gmail and forward to Wunderlist inbox
This requires a filter in Gmail and your Gmail address must be used by Wunderlist. The filter must automatically label the email for IFTTT to pick it up. My filter labels the email and also archives and marks it as read in Gmail so I don't have to clean up gmail. The Gmail filter looks for a keywork (e.g.: "[MyName]ToDo" and that the email is sent to my Gmail address. If you don't include the Gmail address in the To field, IFTTT sends the email via Gmail, it gets marked as sent in your gmail with the body and your keyword, and it gets caught in a loop (tasks are created every few minutes).