Understanding Your Sender Score: The Credit Rating of Your IP

Introduction: The Gatekeepers

You wrote the perfect email, but nobody is reading it. Why? Because organizations like ReturnPath and Cisco Talos have assigned your IP a bad Sender Score. This score, usually between 0 and 100, measures the historical health of your sending IP address.

What Lowers the Score?

Your score will plummet if people frequently mark your emails as "Spam", if you send emails to 'Honey Pot' addresses (fake emails set up to trap spammers), or if your IP is caught on global blacklists. If your score drops below 70, major providers like Yahoo and Microsoft will start filtering your messages straight to the junk folder silently.

Conclusion

Monitoring your Sender Score is a full-time job for corporate IT. A clean IP is the most valuable asset a marketing department owns. Check your domain and IP health here.