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user.name+tag+sorting@example.com (may go to user.name@example.com inbox depending on mail server) x@example.com (one-letter local-part) example-indeed@strange-example.com test/test@test.com (slashes are a printable character, and allowed) admin@mailserver1 (local domain name with no TLD, although ICANN highly discourages dotless email addresses)

For example Abc\@def@example.com is a valid form of an email address. Blank spaces may also appear, as in Fred\ Bloggs@example.com The backslash character may also be used to quote itself, e.g., Joe.\\Blow@example.com So is the article right or not?

International email arises from the combined provision of internationalized domain names (IDN) and email address internationalization (EAI). The result is email that contains international characters (characters which do not exist in the ASCII character set), encoded as UTF-8, in the email header and in supporting mail transfer protocols.

Electronic mail ( email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic ( digital) version of, or counterpart to, mail, at a time when "mail" meant only physical mail (hence e- + mail ).