# Measure deliverability

- HTML page: https://www.billabex.com/en/help/reporting-analytics/measure-deliverability/
- Language: en
- Version française: https://www.billabex.com/fr/aide/pilotage-analyses/mesurer-delivrabilite.md
- Updated: 2026-07-15
- Site index: https://www.billabex.com/llms.txt

<section class="help-summary" aria-labelledby="in-short"><h2 id="in-short">In short</h2><p>Deliverability compares delivered or opened emails with messages that received SES feedback; raw Sent states without feedback are excluded from the denominator. Open rate divides opens by delivered emails. Response rate is account-level over the window because a reply cannot always be reliably linked to one precise outgoing email.</p></section>

## Expected result

You interpret each rate with its denominator and identify addresses degrading the trend.

## Before you start

- Choose a period long enough for delayed feedback.
- Keep absolute volumes visible beside percentages.

## Procedure

1. Open **Management > Deliverability** and record Sent and Feedback volumes.
2. Compare Delivered, Opened, hard bounce, soft bounce, and complaint.
3. Verify deliverability over only emails with feedback.
4. Read opens over delivered and replies over contacted accounts.
5. Open failed communications and correct affected contacts.

## What Billabex does

With multiple recipients, the projection keeps the most critical status, making rate slightly pessimistic. Twelve rolling months include partial current month and explicit zeroes.

## If the result is not what you expected

- Low feedback volume makes a rate unstable.
- Open tracking can be blocked by the mail client.
- Complaint or hard bounce requires contact action before increasing volume.