A standard WordPress installation has very basic support for posting via e-mail. Is there a plugin that gives the same functionality as WordPress.com (especially attachment handling)?
My client is in love with Posterous, and I could set up the XML-RPC bridge so new posts go to WordPress, but I’d rather stay in WordPress so I could add advanced handling of custom post types and taxonomies myself once we get the basics running.
Try Postie.
http://wordpress.org/extend/plugins/postie/
It has lots of features (including handling attachments and inline images)