How does this interact with transactional emails / 2FA / password resets? If 5000 people request a 2fa code in a month, I have to give them a unsubscribe header as well? Or magic login links? If I don't provide a list-unsubscribe header: do these emails then get blocked and noone can log in ? If I provide a list-unsubscribe header, what is the expected behaviour if they do click the Unsubscribe button? - tell them th…
Its 5000/day for marketing, and if you are sending 5000 emails a day, you probably should have unsubscribe links. https://support.google.com/mail/answer/81126#requirements-5k You also need a link, not just list-unsubscribe, and it is specifically for marketing emails. In my experience, Google is pretty accurate in figuring out transactional versus marketing. They don't tell their heuristics, but you don't think engin…
Don’t put Google on a pedestal. I’ve seen Google Workspace classify an individual email sent from one colleague to another as spam. Both perfectly legitimate users in the same account / domain. No weird trigger words like Viagra. Just a run-of-the-mill email about work, between two colleagues who had been emailing each other for months. If emails like that aren’t safe from Google’s spam filter, then no emails are safe from Google’s spam filter.