> My anecdotal evidence is that simple postfix setup with IP from a reputable hoster which is not blacklisted works perfectly. And my anecdotal evidence is tha

> My anecdotal evidence is that simple postfix setup with IP from a reputable hoster which is not blacklisted works perfectly. And my anecdotal evidence is that it does not work perfectly: https://www.attejuvonen.fi/dont-send-email-from-your-own-server/ https://www.attejuvonen.fi/dont-send-email-from-your-own-ser...