Randy Hunt

<p>Crossposterous will cross-post your WordPress blog post to your Posterous site. You can choose whether to post a teaser with a link back your WordPress blog post or cross-post the full content.</p>
<h3>Configuration</h3>
<ol>
<li>Enter your Posterous email and password (used to log into http://posterous.com)</li>
<li>Select the site from the drop-down</li>
<li>Chose “Link back to post” or “Post full content”</li>
</ol>


Crossposterous

WordPress to Posterous cross-posting plugin.

Automattic

Peter Westwood

Daryl L. L. Houston (dllh)

briancolinger

<p>Import posts, comments, tags, and attachments from a Posterous.com blog.</p>
<p><strong>NOTE:</strong> Posterous is shutting down on April 30, and this plugin will no longer function properly because it relies on the service being available. For more information on backing up your Posterous content and migrating what you can into your WordPress blog, please see <a href="https://wordpress.org/support/topic/posterous-shutting-down?replies=1" rel="ugc">this post</a>.</p>


Posterous Importer

Import posts, comments, tags, and attachments from a Posterous.com blog.

Crossposterous vs Posterous Importer