rishabh-ink
commented
4 years ago I don’t think this is an issue because abc.def@mail matches the pattern of a valid email address. As another example, root@localhost is a perfectly valid email address.
For more info, see Why does HTML5 form-validation allow emails without a dot?, where one of the answers mentions:
Because bar is a valid hostname, which makes foo@bar a valid email address. Chrome is not going to check for you whether the address or host are actually in use, only whether the semantics are correct. See http://en.wikipedia.org/wiki/Email_address#Domain_part for examples of valid email addresses.
Or How does HTML5 input type email works without top level domain name, where one of the answers mentions:
Because a@b is a valid email address (eg localhost is a valid domain). See http://en.wikipedia.org/wiki/Email_address#Examples
What is the current behavior?
Valid input when enter: abc.def@mail
What is the expected behavior?
Show error on: abc.def@mail - invalid email
Other information
you can check issue here https://codesandbox.io/s/14r018yjp4 with type mail like abc.def@mail into email field and no error