Inbox Placement Rate

Inbox placement rate is the measured percentage of email that reaches the inbox after delivery.

Delivery is not enough. A message can be accepted by the server and still land in spam.

Why it matters

This is one of the clearest operating metrics for outbound health because it connects technical trust with real visibility.

How teams monitor it

• seed inboxes
• provider-level tests
• complaint and bounce tracking
• trend analysis by domain and mailbox pool

Related reading

• Inbox placement
• Deliverability
• Seed list