Yeah… I always want to install WordPress comment reply plugin but don’t have threaded comments enabled at my theme last time. But I can install it after modified my theme to support threaded comments. So what does this comment reply plugin do? As the name, it will send email when someone replies to your comment. This is great for discussion. And will bring some return traffic too.
Example of replyMail
There is lot of WordPress comment reply plugin like WordPress Thread Comment, Comment Reply Notification, replyMail… The one that I am using is replyMail. It is a really nice plugin. But still can be improved. I will change the output to a better one as some of the email client like Yahoo Mail does not work well with it.