Laravel - Validate email domain

Question

I want to validate domain when user enter invalid domain eg theemail@invaliddomainame.com

$createAccount_validator = Validator::make($request->all(), [

        'username'=>'required|min:6',
        'email'=>'required|email|unique:userTable)',

]);

Currently API of email validation is premium so I don't want to use.

@Jerodev I want to validate when user enter invalid domain which not exists. — user3151197, Feb 06 '17 at 13:45
@user3151197 That's quite complex. You'd have to do a WHOIS, a query for MX records, a query for A records, etc. Would take several seconds to run, most likely, and wouldn't be particularly reliable... and you'd still wind up with lots of valid domains but invalid emails still. If you need a real email, send a verification email to it with a link to click. — ceejayoz, Feb 06 '17 at 13:46
@ceejayoz if laravel allow me I can validate domain get_headers. — user3151197, Feb 07 '17 at 04:40
@user3151197 While possible with a Laravel custom validator, that won't work. Plenty of emails come from valid domains that don't have a website on the domain. — ceejayoz, Feb 07 '17 at 13:12
What does "validating" a domain even mean? There are way too many variables and as said the only way to know if an email is functional is to send an email to it. — miken32, Mar 19 '23 at 18:44

score 0 · Answer 1 · answered Mar 19 '21 at 11:03

Under ~app/Http/Requests/UserRequest.php you can use a regex for the email_domain field like

/**
 * Get the validation rules that apply to the request.
 *
 * @return array
 */
public function rules()
{
    return [
        ...
        'email_domain' => [
            'required', 
            'regex:/^(?!\-)(?:(?:[a-zA-Z\d][a-zA-Z\d\-]{0,61})?[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63}$/',
        ]
    ];
}

This pattern I'm using conforms with most of the rules defined in the specs. Notice that in this case we need to use / before and after.

Laravel - Validate email domain

1 Answers1