The RSS with Images plugin for WordPress allows you to insert images into your RSS feeds. You can add your own sizes in the options section. The plugin allows a minimum of 20px and maximum of 192px for either the height or the width. This means that your minimum image size can be 20×20 pixels and your max image size can be 192×192 pixels.
Does your company use an email marketing provider like Mailchimp to send RSS feeds?
Do you want to add images to those feeds?
Do you think it would it be wicked awesome if you could easily control the size of the images that are sent in the feed?
If you answered yes to any of these 3 questions, this plugin is PERFECT for you! To get started Download the RSS with Images plugin from wordpress.org and install it.
Before you do ANYTHING check your email template for image size requirements. You don’t want the image to be too small or too big. It may break your layout when the email gets sent out.
Set the character encoding for the XML feed. Chances are you will want to leave the this set at the default setting of UTF-8.
Once the width and height are set click Save Settings. Now you can upload a an image in the ‘Featured Image’ section of the post editor. The plugin will hard crop a copy of the image you uploaded and save it in wp-content/uploads/. When it comes time for Mailchimp to dig through your RSS feed, you will have images!