Targeted - The total number of recipients targeted by the email.
Suppressed - The percent of those targeted that were not emailed because they previously bounced or have invalid addresses.
Delivered - Out of the targeted minus the suppressed addresses, the percent that we successfully delivered to the recipient's mail server. A note: this only means the recipient received the email. The recipient's mail server may choose to accept the email but filter it.
Bounced - Out of the targeted minus the suppressed addresses, the percent that was not successfully delivered to the targeted address. The mail server in these cases rejected the delivery. The causes could be a mail server no longer being active, a full mailbox or a proactive spam filter.
Opened - The percent of delivered emails that are opened.
Clicked - The percent of delivered emails in which the recipient clicked a link.
Unsubscribed - The total number of email addresses that unsubscribed from all future emails.
Complained - The total number of recipients that clicked the spam complaint button (in most email clients, this button says something like "Report Spam", "This is Spam", or "Send to Spam Folder"). If your complaint rate exceeds 0.05% (one-twentieth of one percent) per sent email, you may lose email privileges permanently. 

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