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

  1. It checks the syntax of an email address.
  2. It checks if there any MX records or A records for the domain part of the email address.
  3. 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.

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