Before you can begin to interpret whether an email campaign has been successful or not it is necessary to understand what terms like "Hard Bounce", "Soft Bounce", "Opt In", "Opt Out" etc mean.
The A-Z Glossary Of Email Campaign
Blocklist
A list of IP addresses suspected of sending SPAM
Bounces
Emails that are returned to you, as a result of an error such as the email address not being valid, the recipient’s inbox being full etc.
Click Through Rate (CTR)
This indicates how many times a link on an email has been clicked.
Double Opt-In
This is a process where a user signs up for a service and then, having received an email etc, is then required to confirm their subscription.
Hard Bounce
This is when an email is returned to you without it ever reaching the recipient. In cases like this is important to read the return message, as it will ...