frenchsquared

Comment-Emailer allows you to customize the email wordpress automatically 
sends when a new comment, pingback or trackback has been approved. 
With Commented-Emailer you can change the sending email address, message body, 
and enable or disable all of the default options such as including the authors 
name, ipaddress, website, comment or reply to address.
After installation you will have a new tab under settings that 
will give you access to change just about every access of your 
auto generated emails. Just make sure you enable Commented-Emailer

Comment-Emailer

Comment-Emailer allows you to customize the email wordpress automatically sends when a new comment, pingback or trackback has been approved.

bferrara

Bmail allows you to send individual emails to multiple recipients. You can send an email to one person or separate emails by commas to send an email to each recipient’s email address individually. 
Supports HTML, and embedded media from the wordpress editor. Bmail lets you send single emails or mass-mails to multiple recipients without everyone appearing in the To: field.
Bmail now supports hotkeys for more personalized e-mail messages to multiple recipients.
Bmail is available in:
<ul>
<li>English</li>
</ul>
<h3>Documentation</h3>
Additional documentation can be found on the <a href="http://bferrara.ca/bmail/" rel="nofollow ugc">Bmail</a> page.

Bmail

Bmail is a mass email client that allows you to send emails through your site.

Comment-Emailer vs Bmail