In the last few days I have run in to a problem with my Gmail app on my Google Pixel XL. Any message I compose from the app stays in the app as "Queued". It never gets sent. This happens if I have good cell signal, connected to WiFi, or both WiFi and cell. I can receive messages with no problem and can delete them from the phone with no problem. I can reply to an email from the my phone using the gmail app with no problem. This only happens when I compose a new message on the gmail app. I have done the following actions: force stop, clear cache, clear data, gone in to the play store and uninstalled then done an update, and restarted the phone after all of that, and still I have the problem (I have done all of the above actions many times). When I have a message sitting in the app that says "Queued" and I swipe down, it will quickly say "Sending", then go back to "Queued". I even went in the app and checked "unrestricted data usage". I have seen other posts with people who have had this problem and I have tried the fixes that they have discussed (which are the ones I have listed above), but nothing has helped.