About this question
I need to validate an Email address field comprehensively. From Wikipedia, I pulled the following valid/invalid email addresses, is there anything I am missing here? Thanks
Valid email addresses
prettyandsimple@example.com
very.common@example.com
disposable.style.email.with+symbol@example.com
other.email-with-dash@example.com
fully-qualified-domain@example.com
x@example.com (one-letter local-part)
"very.unusual.@.unusual.com"@example.com
"very.(),:;<>[]".VERY."very@ "very".unusual"@strange.example.com
example-indeed@strange-example.com
admin@mailserver1 (local domain name with no TLD)
/#!$%&'*+-/=?^_`{}|~@example.org
"()<>[]:,;@\"!#$%&'-/=?^_`{}| ~.a"@example.org
" "@example.org (space between the quotes)
example@s.solutions (see the List of Internet top-level domains)
user@localserver
user@tt (although ICANN highly discourages dotless email addresses)
user@[IPv6:2001:DB8::1]
Invalid email addresses
Abc.example.com (no @ character)
A@b@c@example.com (only one @ is allowed outside quotation marks)
a"b(c)d,e:f;gi[jk]l@example.com (none of the special characters in this local-part are allowed outside quotation marks)
just"not"right@example.com (quoted strings must be dot separated or the only element making up the local-part)
this is"notallowed@example.com (spaces, quotes, and backslashes may only exist when within quoted strings and preceded by a backslash)
this still"notallowed@example.com (even if escaped (preceded by a backslash), spaces, quotes, and backslashes must still be contained by quotes)
1234567890123456789012345678901234567890123456789012345678901234+x@example.com (too long)
john..doe@example.com (double dot before @)
example@localhost (sent from localhost)
with caveat: Gmail lets this through, Email address#Local-part the dots altogether
john.doe@example..com (double dot after @)
"much.more unusual"@example.com
a valid address with a leading space
a valid address with a trailing space
