Deliverability

Deliverability is whether your mail reaches inboxes rather than spam folders — and this page is the honest read on how you are doing.

It scores a rolling window of your recent sending, bands it as Excellent, Good or Needs attention, and tells you what to fix.

The score is built from what actually happened to your mail, not from a promise.

• Open rate and click rate — how many recipients engaged. Higher is better, and mail nobody opens eventually stops reaching inboxes at all.
• Bounce rate — how much was refused. This is the number that hurts you fastest. A list with old addresses on it will damage a good reputation in days.
• Negative engagement — spam complaints and unsubscribes. Small numbers, large consequences.

Underneath is domain authentication: for each of your domains, whether SPF, DKIM and DMARC are in place, and a score derived from that. A domain missing DKIM is not a theoretical risk — it is the single most common reason mail from a real business lands in spam.

The recommendations at the bottom are generated from your own numbers, and they carry a severity. Anything marked critical is worth doing today.

1. Get authentication complete first. Open Deliverability, look at the domain list, and fix any domain that is not showing all three of SPF, DKIM and DMARC. The records live under Setting up your domain.
2. Bring the bounce rate down. Every hard bounce is an address that should not be mailed again — see Suppressions.
3. Read the recommendations in severity order. Critical first, then warnings.
4. If you are starting to send in volume for the first time, build up gradually rather than sending to everyone on day one. New sending patterns look like spam to receiving servers precisely because spam looks like that.
5. Come back weekly for the first month. The window is rolling, so improvements show up within days.

The score dropped and nothing obvious changed. Check bounces first. A single import of old addresses will do this on its own.

A domain shows a low authentication score. One of SPF, DKIM or DMARC is missing or not being found. Verify it under Domains; the record may have been edited at your DNS host.

Open rate looks terrible. Some of that is measurement — blocked images do not report an open. Compare against your own trend rather than against a number you read somewhere.

Complaints are rising. Stop and look at what you are sending and who to. People marking mail as spam are telling you they did not expect it. Honour unsubscribes quickly.

Everything is green but a customer still says your mail goes to spam. That is about their organization's filters, not your authentication. The specific message in Email logs will confirm it was delivered.

• Setting up your domain — SPF, DKIM and DMARC
• Email logs — what happened to one message
• Go to Deliverability