CODEWITHSUNDEEP
email-validationpunycode
jimlongo
jimlongo

Reputation: 385

punycode proper email addresses

When using an email that has unicode characters such as 

josé@abç.РФ

Do you need to punycode convert both sides or just the right hand side?

josé@xn--ab-5ia.xn--s0ai

or

[email protected]

Upvotes: 4

Views: 1577

Answers (2)

RasmusP_963
RasmusP_963

Reputation: 320

If your email provider has adopted IDN email correctly, then you can use unicode on all labels (i.e. josé, abç, and РФ). Since end of 2017 both Microsoft and Google supports IDN email: https://en.wikipedia.org/wiki/International_email#Adoption

If your email provider haven't adopted IDN email, you should use toASCII-converted punycode labels only. They're on the form that you write in the latter example.

I've found an interactive converter here; it can't handle email addresses correctly though.

Upvotes: 0

ncomputers
ncomputers

Reputation: 4098

Probably it depends if the left or right part complies with RFC 5321.

I had to reply to a chinese address and both parts needed to be converted to punycode.

Upvotes: 0

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