Ross t

Simon Fransson

This plugin lets you send users an email with the new password whenever their password changes.
Disclainmer: It should be noted that sending passwords in cleartext is <a href="http://security.stackexchange.com/questions/17979/is-sending-password-to-user-email-secure" rel="nofollow ugc">VERY MUCH ADVISED AGAINST</a>, and you should probably not never ever be using this plugin in production envorinment.
<h3>Filters</h3>
All filters include a default value and the user id.
<ul>
<li><code>pwcn_to_name</code> – Email To: header name</li>
<li><code>pwcn_to_email</code> – Email To: header email address</li>
<li><code>pwcn_to_header</code> – Email To: header</li>
<li><code>pwcn_site_url</code> – Site URL used in notification email</li>
<li><code>pwcn_login_url</code> – Site login URL used in notification email</li>
<li><code>pwcn_login_url_redirect</code> – Login redirect</li>
<li><code>pwcn_site_name</code> – Site name used in notification email</li>
<li><code>pwcn_site_hostname</code> – Site hostname used in notification email</li>
<li><code>pwcn_subject</code> – Subject line of notification email</li>
<li><code>pwcn_message</code> – Message sent in notification email</li>
<li><code>pwcn_notification_default_value</code> – Wether or not to send notification emails for a given user</li>
</ul>

Password Change Notification

A WordPress plugin for sending users an email notification when their password changes

Automattic

Alex Mills

Nick Momrik

Ian Dunn

Michael Adams (mdawaffe)

Daryl L. L. Houston (dllh)

Each time a change is made to a post or page, those changes are emailed to the users and email addresses you specify.
Optionally, you can set what types of changes to email (post changes, page changes, attachment changes, or changes 
to any other ‘post type’ defined by any other plugin).
The changes are emailed as a unified diff. If the email client supports HTML emails, the diff will be colorized.

Email Post Changes

Emails you whenever a change to a post or page is made.

Password Change Notification vs Email Post Changes