This Comment Mail release candidate includes 8 bug fixes, 6 enhancements, and a completely restructured codebase (which affects any Advanced Templates customized with a previous version of Comment Mail Pro; see changelog below for details). You can download and try out this release using the links below. Please report bugs and feedback on GitHub.

Downloading and Installing

Comment Mail Lite beta testers: Download Comment Mail Lite v160611-RC Release Candidate

Comment Mail Pro beta testers: Download Comment Mail Pro v160611-RC Release Candidate (you must be logged into your account at to access this download)

Installing the Release Candidate

  1. Deactivate and Delete any existing Comment Mail plugin via Dashboard -> Plugins
  2. Download the release candidate using the link above
  3. Install the release candidate you downloaded by going to Dashboard -> Plugins -> Add New -> Upload and selecting the downloaded zip file
  4. Activate Comment Mail

Changelog for Comment Mail v160611-RC

  • Restructured Codebase: The codebase has been completely restructured to improve performance, enhance flexibility, and make it easier to build in new features! Props @jaswsinc. See Issue #150.
  • Comment Mail Pro Upgrade Notice: Incompatible Advanced Templates. This version of Comment Mail includes a rewritten and improved codebase. This rewrite, however, came with the unfortunate side effect of breaking backwards compatibility with Advanced Templates that were customized in a previous version of Comment Mail Pro.

    If you are currently using Comment Mail Pro and you've customized your Advanced Templates, all of your customized Advanced Templates will be backed up and the templates will then be reset to their new defaults. You will find the backup of your old customized template appended to the bottom of the new template, separated with a Legacy Template Backup PHP comment. See example screenshots.

    Note: This change has no effect on Simple templates—only Advanced Templates are affected. Advanced Templates are a Pro-only feature, so this notice only applies to Comment Mail Pro. See Issue #238.

  • Bug Fix: Fixed a bug where esc_html() was being used where esc_sql() should've been used. Props @jaswsinc @kristineds. See Issue #268.
  • Bug Fix: Fixed a bug that in some scenarios resulted in a "DB table creation failure" error when activating the plugin. Props @thienhaxanh2405, @PanNovak, @kristineds, and @jaswsinc. See Issue #260.
  • Bug Fix: Fixed a bug where "New reply" notification emails were not being parsed properly by some Hotmail accounts and were showing up as blank. Props @kristineds. See Issue #259.
  • Bug Fix: Fixed a bug that allowed spam comments to create subscriptions in Comment Mail when using Akismet. Props @IvanRF. See Issue #250.
  • Bug Fix (Pro): When Chrome or Firefox Autofill Username/Password was enabled, the Comment Mail Pro Updater fields would incorrectly be autofilled by the browser with invalid credentials. This has been fixed. Props @renzms. Issue #274.
  • Bug Fix: Fixed a bug where the cron job for the Queue Processor could get deleted and never recreated, which would result in notifications getting stuck in the Mail Queue and not being sent out. If you ever installed Comment Mail and then deleted it (without first disabling Data Safeguards), and then installed Comment Mail again, you were probably affected by this issue. This release fixes the issue and makes the cron setup more robust. Props @kristineds, @renzms, @jaswsinc, and @IvanRF for help testing. See Issue #194 and Issue #173.
  • Bug Fix: Fixed a bug where a subscriber who selected Hourly Digest and who had never been notified before could, in some scenarios, have their subscription treated instead as a Weekly Digest. This bug was found and fixed during the codebase restructuring. Props @jaswsinc. See Issue #150 and additional discussion in Issue #173.
  • Bug Fix: Fixed a bug where in some scenarios Mail Queue entries for Digest Notifications that should have been held for sending later were not being held and were also not being sent. They also would not have shown up in the Mail Queue Event Log. This bug was found and fixed during the codebase restructuring. Props @jaswsinc. See Issue #150 and additional discussion in Issue #173.
  • Enhancement: Minor improvements to the Options Page menu links and positioning of the Pro Preview link. Props @renzms. See Issue #227.
  • Enhancement: It's now possible to use the following shortcodes in the Email Footer Tag for Email Footer Templates: [home_url], [blog_name_clip], and [current_host_path]. Props @kristineds and @IvanRF. See Issue #246.
  • Enhancement: Improved the Subscriptions meta box that appears on the Post Edit screen. For each subscription, the meta box now lists the full name and email address, the date the subscription was created, and a view link that allows you to view/edit the subscription. Props @kristineds. See Issue #231.
  • UX Enhancement (Pro): Improved the Dashboard notice that appears when you try to enable the Pro version of Comment Mail when the Lite version is currently enabled. Props @kristineds @jaswsinc. See Issue #230.
  • UX Enhancement: When Subscribing Without Commenting, the Add New Subscription form now pre-populates the Name and Email address fields whenever possible. Props @kristineds. See Issue #204.
  • UI Enhancement: Dashboard notices generated by Comment Mail now use the WordPress-style dismiss button to keep things consistent. Props @kristineds. See Issue #193.

Please note that when this version leaves beta and an official release is made, the Comment Mail Pro Plugin Updater will automatically detect the new version and ask you to upgrade. You must configure the Pro Plugin Updater (Dashboard -> Comment Mail -> Plugin Updater) to be notified when there is a new official release. If you are running Comment Mail Lite, the WordPress plugin updater will automatically notify you when a General Availability release is made to

Please report bugs and feedback on GitHub.