Are emails verifier programs give real results ? I personally doubt it !! I had 8 active emails put in txt file and tested them within 4 programs to make sure they r valid and each program gives different results ????!!! some gives : 3 valid and 5 invalid .. although all emails r active and I use them almost every day ! The programs used r : live email verifier professional - smart email verifier - atomic email verifier and valid email verifier The question is : To what extent can we trust these programs ? what is wrong with them ?