sahaskatta

When enabled, the admin email address gets a message including the title, author, time stamp, category, tags, and content of each post as it gets published. Edits to published posts are also emailed.
Why use this?
<ul>
<li>Keeps the admins aware of all new content</li>
<li>Notifications when published posts are modified</li>
<li>Enable with just one-click, no hassle</li>
<li>No bloat, uses a simple PHP Mail command</li>
<li>An extra layer of backup if backups are lost</li>
</ul>
Notice: This isn’t by any means an alternative or replacement for regular database and file backups.

ST Email Backup For Published Posts

This plugin emails the admin email account a copy of each post as it gets published.

shawfactor

This plugin allows you to run sql select statements and csv files which are then emailed out to a configurable list of email addresses. This is very useful for backing up your wp database or alternatively generating daily reporting from your website.
Check out <a href="http://lhero.org/plugins/lh-backup/" rel="nofollow ugc">our documentation</a> for more information.
Features:
<ul>
<li>To be added</li>
</ul>

LH Backup

Have WordPress automatically create email backups of tables on your website and send them to an email address.

ST Email Backup For Published Posts vs LH Backup