Everything is OK with SMTP including DMARC, SPF, DKIM. I’ve been using own SMTP since the 2005 year. We did not have useless “money machine” services that time. Let’s imagine that tomorrow someone will try to charge for the air…
So, let’s back to the problem. I know that the easiest way for Senior Tester is to forward me to somewhere or something paid. Could someone provide a help on how to fix a critical bug in Discourse? I still do not agree that Discourse should send 10K letters in 1 sec. It should be rotation service or similar to this which normalizes “last_digest_timestamp” between accounts.