Could you post an example of one of these emails you're trying to send? I know you've stated that they've opted in to receive these emails, but Google doesn't k

Could you post an example of one of these emails you're trying to send? I know you've stated that they've opted in to receive these emails, but Google doesn't know or care about that, if you repeatedly trip their spam filter for outbound mail then I'd wager your gmail account does not have long before it's banned completely. As others have said, use Google Takeout to make a copy of your data - I would also take the time to back up any other accounts e.g. personal ones and make preparations for their banning as well, as Google have been known to ban associated accounts [1]. [1] https://www.reddit.com/r/Android/comments/b10c71/google_play_terminates_corporate_developer/ https://www.reddit.com/r/Android/comments/b10c71/google_play...