You can use api to verify email.
curl https://api.emailstool.com/api/v1/email/verify?email=[email protected]&token=cloudquit
{
"code": 0,
"message": "",
"data": {
"email": "[email protected]",
"reachable": "unknown",
"syntax": {
"username": "sai210728",
"domain": "gmail.com",
"valid": true
},
"smtp": null,
"gravatar": null,
"suggestion": "",
"disposable": false,
"role_account": false,
"free": true,
"has_mx_records": true
}
}