Hi, I have a website developed on Wordpress and I'm looking for newsletter software that supports the integration of both blog posts and custom content into a newsletter. The software does not necessarily have to be a wordpress plugin, but should support blog post integration. Does anyone have any ideas? I've looked at Mailchimp, but it doesn't appear to support this. Also, there is already 1,000 people in the mailing database, so it needs to support at least 5x that much. Thanks