You can filter your email distribution contacts based on the following parameters:
All recipients - To view all the recipients
No responses - To view the recipients who haven't responded yet
Partial responses - To view the ones who have partially responded
Complete responses - To view the ones who have submitted complete responses
Disqualified responses - To view the recipients who don't fit your requirements
Opened - To view the recipients who have opened the invite
Unopened - To view those who haven't yet opened the invite
Unsubscribed - To view those who have unsubscribed to your mailing list
Bounced - To view the invites that haven't reached your recipients yet
Not sent - To view the invites that have not gone out of your mailbox
Failed - To view the invites that have failed to send