Inbox placement is composed of your inbox placement rate, spam placement rate, and missing rate for your email campaigns. You can view your placement summary for an individual campaign in total or by mailbox provider, or you can monitor your overall placement across campaigns.

For all campaigns, your placement summary starts with CoreSeeds. For Gmail, Microsoft, and Yahoo!, Return Path adds SmartSeeds into your inbox placement and spam placement rates. This helps create a more detailed picture of your campaign placement results.

Your inbox, spam, and missing rates will add up to 100 percent in almost all cases. An exception is if one of your campaigns reports all of your CoreSeeds missing for a given mailbox provider. In this case, under missing rate, you will see Seeding issue. Only your SmartSeeds data will be reported for that campaign and mailbox provider.