After you've successfully sent your new email campaign, a new Event is created with the information entered into your email campaign.
Simply go to Search, and find Events with Event Type of 'Campaign Email' and find and open the one you're looking for.
Your new Campaign email will have all the successful recipients linked to it in the relevant linked Stakeholders or Users area.
Your Event Description will be entered into the Summary field for easy reference
Any text in the body of your email will be entered into the Team Response field, and
All Projects and Issues linked to the Event as specified when creating the email in the 'Sending Options' area
To see your full campaign with all details, simply reopen the campaign from the Communications: Email section.