Valid Email Addresses

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A valid email address as of this form: local-part @ domain-part
In particular, the local part is required to be one of the following:
  1. dot-atom
  2. quoted string
  3. a combination of the above. E.g. my.name.is."Johannes Kuah"@example.com
 

Dot-Atom

A string of ASCII characters excluding the following special characters: whitespace ( ) < > @ , ; : \ " . [ ]
 

Quoted String

A string of ASCII characters including the above special characters enclosed within normal ASCII quotation marks ("). However, the backslash \ and quotation mark " must also be preceded by a backslash \
 

References


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