Earlier quoted context omitted.
last i checked (about half a year ago), they didn’t support IPv6. a tired meme, but it actually has economic impacts on my self-hoster friends. almost all ISPs block the SMTP port, and it’s way cheaper (free, even) to get an unblocked IPv6 address than an IPv4 one just because of address exhaustion. so if i used Zoho i’d kinda be forcing them to pay more if they want to be able to reach me :/
> almost all ISPs block the SMTP port, Is that a US thing? Or which country are you talking about? I’ve never had any port blocked in Germany.
https://www.xfinity.com/support/articles/list-of-blocked-por...