Simon Willison’s Weblog

Email addresses your OpenID via DNS. Sam Ruby has warmed to the idea of making e-mail addresses usable as OpenIDs via a DNS SRV record.

Posted 30th September 2007 at 9:36 pm

Recent articles

GPT-5: Key characteristics, pricing and model card - 7th August 2025
OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025

dns 28 email 35 openid 213 sam-ruby 24 srv 1

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe