Feedback Loops: Setting Up JMRP, Yahoo CFL, and a Complaint Data Pipeline
Feedback loops send you the complaints your recipients file. How to register with Microsoft, Yahoo, and the rest, and what to build so the data actually gets used.
#Spam Complaints
3 articles with this tag
The 0.3% Spam Complaint Threshold: How Postmaster Tools Actually Calculate It
Gmail enforces a 0.3% user-reported spam ceiling, but the denominator is inboxed mail, and not sent volume. How the rate is computed and how to stay under it.
Double Opt-In: Why It's Worth the Drop in Sign-Up Rate
Double opt-in cuts sign-up volume by 20–30%. Here is why the deliverability and list quality trade-off almost always favours confirmation anyway.