4 ms·
> According to ICANN's SSAC,[1] SMTP requires at least two labels... ICANN does not define SMTP, and the "relevant quote" from SSAC in the article footnotes me
by nulbyte 1y ago
> According to ICANN's SSAC,[1] SMTP requires at least two labels...
ICANN does not define SMTP, and the "relevant quote" from SSAC in the article footnotes mentions nothing about it, either.
In fact, RFC5321 makes explicit reference to the possibility of an email address using a TLD as the domain in section 2.3.5.
- qingcharles 1y agoI've known people back in the 90s with user@tld domains, and they were definitely sending and receiving mail. So, even if it wasn't spec-compliant it certainly got through all the early mail relays. I mean.. you can use emoji domains right now. They work most places for email. The part I found didn't work so well is emoji usernames on emoji domains. That has poor deliverability.
- deleted 1y ago[deleted]
- Joker_vD 1y ago> you can use emoji domains right now ICANN, by the way, heavily discourages such domain names, even though it can't actually prohibit them: yes, RFC 5892 explicitly prohibits emoji code points in internationalized domain names but so what? If registrars allow (and many acually do allow) registration of such names that only means that they violate some RFC and they already violate quite a lot of them. Who cares! Just pay the money and we will delegate you whatever names you want.
- deleted 1y ago[deleted]
- rzzzt 1y agoI'd think/hope the Punycode representation is actually registered in these cases: https://en.wikipedia.org/wiki/Emoji_domain https://en.wikipedia.org/wiki/Emoji_domain
- pas 1y agosure, and you can use it internally, or with your own private/internal DNS (or other name resolution system), but in practice it means that for new gTLDs it's a no-go, right?