MailChimp’s Inbox Inspector is an add-on that lets you check your email campaign’s “score” with all the major spam filters. With one click, you can tell what the likelihood is of your email getting blocked by inbox spam filters, server filters (like Postini, BrightMail, MessageLabs, and Spam Assassin), and Gateway filters like IronPort. Here’s a screenshot of what the spam filter check report looks like:

If you’re like to learn more about the Inbox Inspector, click here or check out this demo video.

To learn more about how spam filters work (and how to avoid getting trapped), check out the Deliverability section of the MailChimp email marketing resource center:

• How Spam Filters Think
• How Email Firewalls Work
• Avoid AppleMail’s Spam Filter