Understand your Sender Health score

Sender Health is Inbrovia's summary of how mailbox providers are likely to treat mail from one of your sending domains. It is a number from 0 to 100, calculated per domain from the last 30 days of sending, and every point it loses is explained. The score does not predict a single campaign. It measures the reputation your campaigns draw on.

Where to find it

Go to Deliverability, then Sender Health. Each domain of the current brand gets its own card with:

• The score in a ring, and a label: Excellent (90 and above), Healthy (75–89), Needs Attention (50–74) or High Risk (below 50). Paused appears instead when sending from the domain or the workspace is paused.
• The domain status, such as Ready or Needs Attention, and how many messages were sent in the last 30 days.
• Four rates: delivery rate, complaint rate (keep under 0.08%), hard bounce rate (keep under 2%) and unsubscribe rate.
• Why followed by the score, a list of every factor with the points it added or removed. It opens automatically when something is lowering the score.

How the score is calculated

The score starts at 100, and each factor below can take points away. The final score never goes below 0.

Complaints and bounces are only scored once the domain has sent at least 200 messages in the period. Audience Quality only counts when you have imported recently.

Reading the breakdown

Start with the factor that costs the most points. A score that dropped after one campaign usually points to that campaign: open its results and look at complaints and bounces. A score that drifts down over weeks usually points to the audience: an old list, a new acquisition source or a bulk import with many invalid addresses. If the problem is Authentication, select Manage domain and fix the records that do not pass. Connect your sending domain explains each one.

Complaints and Bounces in the Deliverability menu list the individual addresses behind those rates.

What moves the score up

• Send to people who expect to hear from you. Recognition is the strongest protection against complaints.
• Import with the quality report open, and treat the excluded groups as final. See Import your audience.
• Keep topic preferences available so recipients can choose less email instead of complaining.
• Add the optional DNS records, including DMARC, to recover the Authentication points.
• Grow volume gradually. A sudden jump compared with the previous 30 days costs points, and mailbox providers also react to it.
• Remove recipients who have not engaged for a long time. Old addresses are more likely to bounce or complain.

What Inbrovia does automatically

• Hard bounces and complaints are suppressed as soon as the events arrive, for every brand in the workspace, and are never contacted again.
• Soft bounces, temporary failures such as a full mailbox, are recorded on the Bounces page separately from hard bounces. They do not count toward the hard bounce rate.
• Unsubscribes are suppressed for the brand straight away.
• Complaint spikes: if a campaign's complaint rate rises past a safety threshold while it is sending, Inbrovia pauses the campaign and sends a notification, so one bad list does not damage the whole domain.
• Unsubscribe: every campaign carries one-click unsubscribe headers, and Campaign Guardian blocks any campaign without a visible unsubscribe link.

When the score is low

Do not try to send your way out of it. Pause large campaigns, find the factor costing the most points and fix its source. If complaints are the issue, review recent campaigns for content recipients would not have expected and check how that audience was collected. If bounces are the issue, look at the latest imports. Because the score uses the last 30 days, it recovers as clean campaigns replace the problem period. For more on protecting a domain, see Sender Health.