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SMTPedia

The Email Wiki

Unicode standards

RFCs

RFC 6530: Overview and Framework for Internationalized Email

Alaa 14 July 2026

Framework RFC for EAI (Email Address Internationalization) supporting Unicode email addresses and headers.

RFCs

RFC 5890: Internationalized Domain Names for Applications (IDNA 2008)

Alaa 22 July 2026

Defines how international domain names are encoded for use in DNS and email addresses.