It's been over a year since the Google Is Eating Our Mail (https://www.tablix.org/~avian/blog/archives/2019/04/google_is_eating_our_mail/) post trended on HN. In that thread, a Gmail PM reassured that Google
does have an incentive to cooperate with smaller email servers and fix problems like their mail getting rejected or delivered to the Spam folder when sent to Gmail addresses (https://news.ycombinator.com/item?id=19758386 and https://news.ycombinator.com/item?id=19759411).
I'm wondering whether any of you have seen any improvements on this front in the past year. Are there any new introspection tools to diagnose deliverability problems when they happen? New guidelines which verifiably reduce the probability of such problems occurring?
As an administrator of a small email server (with SPF/DKIM/DMARC/MTA-STS set up properly and a clean reputation of 5+ years), from my point of view nothing has changed, except perhaps for the worse. Email sent to Gmail users seems to end up in the Spam folder more often than before.
I wish people who praise Email as an example of decentralization working actually went through that exercise.
[0] yes it will show "via sendgrid.net" so perhaps by design the domain in "From" isn't checked, but still...