Unsubscribe statistics for each email campaign you send, either for a specific date or over time. You can view the details of everyone who unsubscribed and see the unsubscribe rate relative to open and bounce rates.
Gaining explicit permission for email marketing is not only a best practice, but it's also required by mailflier, and most email service providers in the industry. Email marketing without permission will negatively impact your sender reputation, and ultimately lead to a decrease in deliverability and loss of good leads.
Most emails bounce because of a permanent issue with the receiving email account, a temporary issue with the receiving email account, or because the email is blocked by the receiving server. When an email bounces, the recipient's server sends a message back to mailflier that describes the reason for the bounce.
A general bounce is recorded when the server could not deliver an email message, but also could not detect a specific reason. In most cases, this is related to a soft bounce
A mail block is recorded when the recipient's email server blocks an email message completely. It rejects it before it tries to deliver it to their inbox.
These are recorded when an auto-reply request is sent to your bounce capture email account(email@example.com or firstname.lastname@example.org) asking to be removed from your email list. A real person will reply to the email or click on the Unsubscribe Link. These Unsubscribe Requests are the same as an ISP Spam complaint.
An undetermined status is assigned when Infusionsoft is not able to identify the cause of the bounce based on the feedback received from the receiving server.