Using our new UI? You might want to check this help article instead.
You can always check the current Status for each campaign you have created by navigating to your Campaigns page - it's just a click away!
1. Click on the Campaigns button, located on the left side of your Dashboard page.
2. You will find Status on the third column of the Campaign Table. 
When a particular campaign's status is indicated as "Sending" this means that the campaign is in the process of being sent out, and that your email campaign is currently on its way to the inboxes of your recipients; in a few minutes time your email should be delivered. You can start checking your campaign reporting right away!
If you notice that the "Sending" campaign status remains, do not hesitate to contact our amazing support team, they'll help you out.