So much spam comes from @gmail.com that I might have to straight up quarantine new accounts who register with a gmail address

@sir literally every single spam email i have received since may (when i started running my own email server) has been from gmail.com

maybe we should all just blacklist gmail, it's poorly behaved in the email federation, it's a poorly disguised data siphon for google, it's a major source of spam, and it's barely got subpar support for any open standards if you constantly fiddle with settings to get it to continue to let you log in