Return sending analytics for a mailbox (campaign), grouped by date. Each date bucket contains two categories:

1. Warm Up – outbound warm-up emails sent from this mailbox.
2. Replies – replies this mailbox sent back to received warm-up emails.

Each category reports a Total count plus a landed In breakdown showing which folder the emails arrived in on the recipient side (e.g. inbox, spam). To count emails that Mailivery rescued from the spam folder, read the spam value under landed In.