Deliverability

Where the deliverability test is a point-in-time check, this page monitors inbox placement over time — so a slow decline doesn’t go unnoticed until revenue drops.

SendLucid Deliverability Monitor

What you see

  • Deliverability Score — your current 0–100 grade.
  • Authentication — SPF, DKIM, and DMARC status. All three must pass, or providers like Gmail and Outlook will spam-folder or reject your mail. (In the example above, all three are failing — exactly the kind of issue this page surfaces.)
  • List Health — bounce rate, spam-complaint rate, unsubscribe rate, and estimated hard bounces. These gate whether you reach the inbox at all.
  • Deliverability Trends — inbox placement over the last 6 months.

Per-stat breakdown

Deliverability score and list-health KPIs at the top of the page

Deliverability score and list-health KPIs at the top of the page.

The current 0–100 Deliverability Score

The current 0–100 Deliverability Score.

Deliverability Trends

Deliverability Trends — inbox placement over the last 6 months.

How to read it

Fix authentication first — a failing SPF/DKIM/DMARC caps everything else. Then watch bounce and complaint rates: rising numbers erode sender reputation and pull the whole program down. A downward trend line is an early warning to act before placement collapses.

What to do

Resolve failing auth (see the checks reference and the DMARC tool), then tighten list hygiene — sunset unengaged subscribers and stop mailing addresses that bounce.