Genuine Trick/Tool for Email Verifier Needed

what validation you want? simple validation can be checked on websites,many email verifier are available(example https://hunter.io/ ) on internet you can search them easily. but they don’t provide much info or provide free trials, just checked them out..if you want detailed info then you need to buy paid subscription.
sorry cant help much…please specify for what purpose  you need email verifier? thanks