Can an email address contain international (non-english) characters?

email internationalization non-english
User picture User · Apr 17, 2009 · Viewed 64k times · Source

If it's possible, should I accept such emails from users and what problems to expect when I will be sending mails to such addresses?

Answer

Yuval Adam picture Yuval Adam · Apr 17, 2009

Officially, per RFC 6532 - Yes.

For a quick explanation, check out wikipedia on the subject.

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