P5-mail-checkuser

Jul 20, 2023

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.


Checkout these related ports:
  • Xpbiff -
  • Xmailwatcher - Mailbox checker which displays sender and subject lines of mails
  • Xmailbox - Mailbox checker with sound and animation for X Window System
  • Xmail - X-based interface to the Berkeley mail program
  • Xfce4-mailwatch-plugin - Mail notification applet for the Xfce panel
  • Xfaces - Display shaped icons for mail spool contents
  • Xcite - Exciting Cite for any Mail/News reading modes on Emacs
  • Xbuffy - Replacement for xbiff that handles multiple mail files
  • X-face-e21 - X-Face utilities for Emacs
  • Wmmaiload - Incoming mail monitor dockapp with a similar look to wmcpuload
  • Wmbiff -
  • Whoson - Implementation of `WHO iS ONline' protocol
  • Websieve - Web based Cyrus IMAP user admin client
  • Wanderlust - Mail and news system for Emacs
  • Vrfy - Verify mail address