May 26, 2018
Perl module to check email addresses for validity
This Perl module provides routines for checking validity of email address.
It makes several checks
- It checks the syntax of an email address.
- It checks if there any MX records or A records for the domain part of the email address.
- It tries to connect to an email server directly via SMTP to check if mailbox is valid. It uses a combination of MAIL and RCPT commands which simulates sending an email. It can detect bad mailboxes in many cases.