We recently added the ability to sort and filter subscribers by open and click rate. Now we've brought that same functionality over to the other side of the house: you can filter your sent emails by open rate, click rate, and delivery rate.

Instead of scanning through a long list of past sends, you can jump straight to the ones that performed the way you're looking for. Each filter lets you set a minimum and maximum range, or pick from preset buckets (0–25%, 25–50%, 50–75%, 75–100%). Want to pull up every email that cracked a 50% open rate? Two clicks. Want to find the ones where barely anyone clicked through? Same deal.

A few ways this helps:

• Find what's working: Filter by high open rate to see which subject lines and topics resonated most. Great for figuring out what to write more of.
• Spot deliverability issues: Filter by low delivery rate to catch emails that may have bounced more than expected — a useful early warning sign if something's off with your list hygiene.
• Combine with other filters: Stack rate filters with audience, source, or date range filters to get really specific. For example, find all emails sent to a particular tag in the last quarter with an open rate above 40%.

If you want to dig deeper into how Buttondown tracks these metrics, check out our analytics documentation.