Email Address Internationalization: SMTPUTF8 and EAI in Practice
Addresses like 佐藤@例え.jp are valid email. How EAI and SMTPUTF8 work, who supports them, and what sending systems break when a Unicode address shows up.
Explore how communication platforms, protocols, and messaging ecosystems connect and interact through federation, cross-platform messaging, protocol bridging, universal standards, and interoperability between email, RCS, chat, and telecom systems.
Addresses like 佐藤@例え.jp are valid email. How EAI and SMTPUTF8 work, who supports them, and what sending systems break when a Unicode address shows up.