Hello , i need some help if is possible. i have about 25.000 emails and i don't know if they are valid emails, is any way to verify all this emails if they are valid or not, with any kind of software (free ) or any online website ? EDIT: i need any kind of software or website like this one: www[.]verifyemailaddress[.]org here you can only verify a single email address not many emails at once, this is what i am asking for.. Thank you