Symptoms#
- Messages landing in spam despite previously good placement
- Bounces mentioning policy, authentication, or reputation
- Provider dashboards showing a drop in reputation or authentication pass rate
Diagnosis steps#
- Confirm the configuration is live: query DNS from an external resolver and check the sending platform's settings page.
- Send to a seed mailbox and read the full headers, especially Authentication-Results.
- Compare the domains in From, Return-Path, and DKIM d= for alignment.
- Check provider dashboards (Google Postmaster Tools, Microsoft SNDS) for reputation and error rates.
- Review recent changes: new vendors, DNS edits, list imports, volume spikes.
Likely causes#
- Scoring opens after Mail Privacy Protection.
- Never decaying scores, so everyone eventually looks hot.
Fix and re-verify#
- Define fit criteria with sales and assign static points.
- Assign behavior points with decay so old activity fades.
- Set thresholds that trigger handoff, nurture, or suppression.
- Review score accuracy against closed deals quarterly.
Frequently asked questions#
Should lead scoring include email opens?
Give opens little or no weight. Clicks, replies, and site visits are far more reliable.