https://www.androidpolice.com/2019/03/22/most-ifttt-applets-using-gmail-will-break-this-month/
From March: “IFTTT says it discussed these changes with the Gmail team, but ultimately decided that it couldn't keep most of its existing functionality without "major infrastructure changes." As such, every IFTTT action and trigger for Gmail except 'Send an email' and 'Send yourself an email' are going away soon.”
