CODEWITHSUNDEEP
jqueryhtmlemailjquery-inputmask
Blaise
Blaise

Reputation: 22212

Should email validation requires the domain part contains a dot?

I noticed that the built-in browser validation for <input type="email" /> requires a format of xxx@xxx. Only the @ character is required. There is no need to a dot, like [email protected].

It is the same with the popular jQuery.inputmask, the rule of email alias does not require the dot, either.

I am just curious. Is it a standard way to ignore the dot in email validation now? I haven't seen any email address on the root level domain. What is the reason to ignore the dot?

Upvotes: 6

Views: 5906

Answers (1)

Ortomala Lokni
Ortomala Lokni

Reputation: 62515

The RFC 822, chapter 6, gives the specification of an address in augmented Backus-Naur Form (BNF):

addr-spec   =  local-part "@" domain
local-part  =  word *("." word)
domain      =  sub-domain *("." sub-domain)

Using this specification a@b is a valid address.

Upvotes: 12

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