Yes, Fail2Notify is free to use. It is available as a free plugin on WordPress.org.

How many websites use Fail2Notify?

Fail2Notify has 0 active installations as tracked by WordPress.org.

What are the best Fail2Notify alternatives?

Popular alternatives to Fail2Notify include WP Mail SMTP by WPForms – The Most…, MC4WP: Mailchimp for WordPress, Easy WP SMTP – WordPress SMTP and Email…. You can compare them side-by-side on our comparison pages.

Does Fail2Notify work with the latest WordPress?

Fail2Notify has been tested up to WordPress 6.9.4. It requires WordPress 6.0+ and PHP 7.4+.

Fail2Notify — Mail Failure Alerts — Reviews, Rating & Alternatives (2026)

Name: Fail2Notify — Mail Failure Alerts
Author: Solgeo Corp.

As of April 2026, Fail2Notify is a WordPress email plugin with 0 active installations and a 0/5 rating0. It has been downloaded 282 times in total. Requires WordPress 6.0+ and PHP 7.4+. Available on WordPress.org since 2025. Top alternative: WP Mail SMTP by WPForms – The Most….

0/5Rating

0active installs

282total downloads

1 yearsince 2025

Overview

Fail2Notify hooks into the core wp_mail_failed action to capture transport errors, masks personally identifiable information, optionally stores the latest 50 failure logs, and posts a concise message to a Slack incoming webhook. A manual “Send Test Notification” button is included to verify connectivity without forcing an actual failure.

Features

Instant detection of wp_mail() failures.
Slack Incoming Webhook notifications with site label, environment, and body excerpt.
Automatic masking for email addresses in any field, including the message body.
Up to 50 recent logs visible inside the settings page.
Manual “Send Test Notification” button for quick verification.