TG Email Validator is a tool composed of two DLLs which validate addresses in 4 levels:
Level 1 - Syntax: email address syntax valid
Level 2 - Domain: email server (MX record) is configured
Level 3 - SMTP: destination email server is running
Level 4 - Account: email address exists

Not all email servers support level 4 validation. Thus, if all other validations are passed we return a 250 OK response if the target email server does not support level 4 validation.

Feel free to give the DLLs a go using the form below, or trial the demo DLLs provided here. The string returned in below the submit button is what the DLLs wil return.