The Complaint Score is calculated from the number of complaints generated by your mail streams to Yahoo and Microsoft domains. Many mailbox providers, including Google, do not share recipient specific complaint events.
If no complaint data is available, this component is removed from the StreamScore calculation
Customers that send low volumes of mail to Microsoft and Yahoo domains are likely to see a higher variance in this score component.
For accounts where complaint rates are measurable, the ability to achieve a high score is determined by two interrelated factors:
- the content of the outbound message
- the frequency with which those messages are being sent.
For more information around SocketLabs' tolerance of complaints and our suggested best practices, see our Acceptable Spam Complaint Rates article.