this really sums up my feelings. i have sent emails to people past that i have no other way to reach and never got a reply, and i have no idea if they even got my email.
and the same the other way around. which is one reason why i run my own server.
i always believed that spam filtering must be done at the end user, and noone else has the right to block email from reaching me. in particular the most obvious thing, every address that i send to, should automatically be whitelisted as a valid sender, unless i explicitly mark it as spam. the exceptions should be obvious DMARC/DKIM/SPF violations.
at one point i was even working on my own email server to implement this kind of whitelisting/filtering myself.
and the same the other way around. which is one reason why i run my own server.
i always believed that spam filtering must be done at the end user, and noone else has the right to block email from reaching me. in particular the most obvious thing, every address that i send to, should automatically be whitelisted as a valid sender, unless i explicitly mark it as spam. the exceptions should be obvious DMARC/DKIM/SPF violations.
at one point i was even working on my own email server to implement this kind of whitelisting/filtering myself.