You could have 50 sending inboxes and still have no idea which ones are killing your deliverability. Your campaign-level numbers won't always tell you which mailboxes are bouncing, losing replies, or having connection issues. And checking every inbox manually gets old pretty quickly. @smartlead_ai's Insights gives you mailbox-level visibility across your sending setup. You can see: - Which mailboxes are healthy, throttled or blocked - Bounce and reply trends over the last 7 or 14 days - Bounce rate tracked against a healthy line (under 3%) and an action line (5%+) - IMAP, OAuth, and other issues affecting reply tracking The connection checks are especially useful. If a mailbox stops tracking replies because its authentication has expired, you can investigate the connection instead of assuming your campaign has stopped working. Insights also explains what needs attention in plain English, lets you reconnect up to 50 affected mailboxes in bulk, and checks whether the fixes worked. When you're managing a large sending operation, being able to identify and troubleshoot the specific inbox causing trouble is far more useful than another campaign-wide average.