Open a campaign from Campaigns to see how it is doing.
Controls

- Pause
- Stops further writing and sending within seconds. Emails already written are kept, and what has already gone out has gone out.
- Resume
- Picks a paused campaign back up from the next person.
- Stop
- Ends the campaign: nothing more is written or sent. A recurring campaign will not run again.
Per-Recipient Detail
The recipient list shows each person's stage and lets you read the exact email they were sent. It is searchable, including by operators for stage.
Performance
A campaign carries its own chart over a date range you pick, starting from Since sent. Aggregate email performance across campaigns lives in Insights → Email Engagement.