Neutrality is a bad idea, or if they’d appreciate if >their email providers didn’t allow emails to Gmail >because they don’t like big corporations…
email servers and domains are blocked constantly and have been since the 90’s when they are pushing spam, malware,etc.
Spam filters isn’t the same as defederating. As far as I know outside of cert issues (like DKIM to prevent spoofing) nobody would prevent you from sending an email to any domain that uses SMTP. And if you allowlist emails from that domain you’ll receive it.
This is not the same as Gmail saying “we won’t allow emails to and from proton” or vice versa.
But MANY email services block entire domains. Not “to” I’ll give you but from.
As far as I know no email services (at least the big ones) do that. They will mark some domains as spam by default but if you allow them (e.g. adding the email to your contacts) you will get them in your inbox, penis pills and all.
I’d rather be able to do that for Mastodon (allow me to follow some people but mark the rest as whatever-the-equivalent-of-spam is).