Subscribe to Comments 2.1
Subscribe to Comments 2.1 is a plugin that allows commenters on your blog to check a box before commenting and get e-mail notification of further comments. It is one of the most popular WordPress plugins out there for the simple reason that it helps foster a community around your blog by encouraging commenters to come back and stay engaged in the dialog.
Features
- Rudimentary security
- Users cannot enter a random e-mail into the subscription manager and modify someone else’s subscriptions
- In order to modify subscriptions, users need to use a special link, given in notification e-mails, and printed in the comments form as long as they have their comment cookie
- Recognition of subscription status
- Unsubscribed users see the “subscribe to comments” checkbox, but subscribed users see a “Manage your subscriptions” link
- The author of the post is recognized by either login or comment cookie and is assumed to be subscribed to the entry (as they will receive notifications through WordPress)
- Themeable subscription manager
- Uses visual style of WordPress interface
- Can be optionally accessed via “Manage” menu in WordPress
- E-mail verification of block requests
- Javascript “invert selection” link to check/uncheck subscriptions for mass deletion
- “Return to the page you were viewing” link that persists at the top of the page, so that users can easily return to the post they were reading once they are done modifying subscriptions
- Ability to let users change notification e-mail address
- In the subscription manager, users can request that their notification address be changed for all their subscriptions
- Special link is sent to the old address for verification
- Once clicked, their e-mail address will be changed instantly for all their comments
- Easy integration into comments form
- No modification of comments form needed for WP 1.5+ (supported themes)
- For users who want custom placement of the checkbox/link to subscription manager, this can be done with one simple function call, placed anywhere in the comment form
- Subscription without leaving a comment
- By popular demand, you can now offer visitors the option of subscribing to comments on an entry without having to leave a comment themselves
- If the reader later decides to join the conversation, their subscription continues without them having to explicitly set it
- Customization
- You can make the Subscription Manager that your users see use your theme’s header, footer and sidebar, using CSS to style it to fit your site
- Internationalization
- I’ve written Subscribe to Comments 2.1 with i18n in mind, making full use of
__()and_e()functions. The domain is “subscribe-to-comments”.
- I’ve written Subscribe to Comments 2.1 with i18n in mind, making full use of
Download
Version 2.1 Update
Version 2.1 of Subscribe to Comments has a feature that people have been begging me to implement for many months: you can view the list of people who are subscribed to posts on your blog, and you can also see a list of the most “subscribed” posts. Also in this version is a new one-file install. You just put subscribe-to-comments.php in your /plugins/ directory, activate, and you’re done. This version will work on WordPress versions from 2.0.6 through 2.3.1 (highest tested).
Versions
- 2.1.2 Fixed a few bugs that’d send bad notifications (thanks Donncha!), cleaned up some code and moved to using proper WP escaping functions
- 2.1.1 WordPress 2.2 compatibility! Also note that support for
attribute_escape()is needed, so if you get errors about that, upgrade to the latest version in your branch - 2.1 big update, fixing a few potential XSS holes, and misc error messages… see above for details
- 2.0.8 XSS security fixes, hopefully fixed “+” symbols in e-mail for good
- 2.0.7 additional “funky e-mail” fixes
- 2.0.6 support for e-mail addresses with “+” symbols, option to disable CSS “clearing”
- 2.0.4 potential security bugs, better WP 2.0 capabilities compat
Feedback/Bugs
Feel free to leave bug reports or feature requests here. Use this entry’s comments to ask support questions or offer general feedback


works like a breeze in WP 2.1, a useful plugin which I would recommend all to use.
This is what I am looking for. Thanks Mark. I will install it on my blog
This looks pretty neat. Just installed it 5 minutes ago - let’s hope it drives community feedback on the site!
Thanks for your efforts.
Great plugin - nice work!
Definiately a popular plugin, and with good reason.
With the plugin activated, people can’t leave comments. Using WP 2.1. Also using Ajax comment plug-in.
Any ideas?
They click submit, but the comment doesn’t show up…
HI Mark:
First time blogger here trying to set up my blog. I tried to install the plug in, and got this error message:
WordPress database error: [Access denied for user 'yscr_bb86GT'@'localhost' to database 'blog']
ALTER TABLE wp_comments ADD COLUMN comment_subscribe enum(’Y',’N') NOT NULL default ‘N’
The theme is Cutline, and the blog address is futuretycoons.com/blog, in case you need to see exactly what it is. HELP!!
Rafi
I tried to activate the plugin and I got this error after hitting activate and it locks up the plugin admin area.
Any ideas how to fix this?
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 184320 bytes) in /var/www/virtual/domain.com/htdocs/wp-content/plugins/subscribe-to-comments.php on line 1082
Richard Wing
It won’t work in wordpress 2.1.2
I have just try it out.
Install-success
Notification to admin on new comment including IP..-success
Notification to subscriber for the next comment appear after his post- FAIL
Any idea?
Hi and thanks for the Plugin.
After installing WP 2.1.3 (German) there’s a problem with StC, I can’t solve by my own. Even in the WP-Forum it doesn’t seem, that anybody else knows the solution.
You can see the messages I receive in the Screenshot I made:
http://www.starker-ruecken.com/images/stc.jpg
Hope you can help me
I second that, i get the same errors with the english version of WP 2.1.3
Hi,
I began to translate Subscribe to Comments into French with PoEdit.
I uploaded the subscribe-to-comments-fr_FR.mo (and subscribe-to-comments-fr_FR.po) files to the subscribe-to-comments folder.
But the translation gives nothing.
What should I do ?
Thanks in advance
I have the same problem as Lise. I copied the german-File into all possible folders, but there is no effect.
Any idea?
greta site just visit it
http://www.hutwitina.com
thanks