Concept
Sending health
How Emailit scores sending health from 0 to 100 using bounce rates, what Healthy, At risk, Paused and Suspended mean, and how healthy sending raises limits.
Sending health is Emailit’s measure of how cleanly your workspace and each of its domains send. It’s based on the share of recipients whose mail bounces. This page explains how the score is calculated, what each status means, the thresholds Emailit applies and how to recover.
How the score works
Emailit recalculates sending health every hour, for the workspace as a whole and for each sending domain.
- It counts unique recipients. For each time window, Emailit counts the distinct addresses you sent to and how many of them bounced. Sending ten emails to the same bad address counts as one bounced recipient.
- It looks at several windows. The last 7, 30 and 90 days, plus everything since your first send within those 90 days.
- It ignores small windows. A window needs at least 100 unique recipients to count.
- The worst window wins. Of the windows that count, the one with the highest bounce rate sets your score and status.
Until at least one window reaches 100 unique recipients, the status is Collecting and there’s no score yet.
Score bands
The score is stepped, not a straight percentage:
| Bounce rate | Score |
|---|---|
| Under 0.5% | 100 |
| 0.5% to under 1% | 96 |
| 1% to under 1.5% | 92 |
| 1.5% to under 2% | 88 |
| 2% to under 2.5% | 80 |
| 2.5% to under 3% | 72 |
| 3% to under 3.5% | 64 |
| 3.5% to under 4% | 56 |
| 4% to under 4.5% | 48 |
| 4.5% to under 5% | 40 |
| 5% to under 5.5% | 28 |
| 5.5% to under 6% | 16 |
| 6% to under 8% | 8 |
| 8% or more | 0 |
The dashboard shows scores of 80 and above in green, 50 to 79 in amber and below 50 in red.
Statuses and thresholds
| Status | Applies to | When | What happens |
|---|---|---|---|
| Collecting | Workspace, domain | No window has 100 unique recipients yet. | Nothing. Keep sending. |
| Healthy | Workspace, domain | Bounce rate is 4% or lower. | Nothing. Pro and Business workspaces can get automatic limit raises. |
| At risk | Workspace, domain | Bounce rate is above 4%. | A warning on the dashboard. Emailit can also email the workspace owner. |
| Paused | Domain | The domain’s bounce rate is above 5%. | Sending from that domain stops. |
| Suspended | Workspace | The workspace’s bounce rate is 6% or higher. | All sending from the workspace stops. |
These are the rules Emailit applies. Pausing, suspension, owner emails and automatic limit raises may be rolled out gradually, so a workspace or domain over a threshold can stay At risk for a while before it’s paused or suspended. Don’t treat that as room to spare.
What a paused domain looks like
- The domain page shows a Sending paused banner: “Sending from this domain is paused. Contact support to restore it.”
- The API rejects sends from it with
403 Domain paused, and SMTP replies550 Sending from this domain is paused. - Mail from the domain that’s already queued gets the status
held.
Other domains in the workspace keep sending.
What a suspended workspace looks like
- A Workspace suspended banner appears across the dashboard.
- The API rejects requests that change data with
403 Workspace is suspended, and SMTP replies535 Mail server has been suspended. - Queued mail gets the status
held.
Where to see it
| Place | What it shows |
|---|---|
| Dashboard | The workspace score, status and a score history chart. |
| WorkspaceSettings, General tab | The full Sending health card: score, status, bounce rate, your weakest domain and history by day, week or month. |
| Email APIDomains | A Sending health column with each domain’s status. |
| Domain page, Sending health tab | The domain’s own score and history. Available on Pro, Business and Custom. |
Sending health isn’t available through the public API.
Automatic limit raises
New workspaces start at 2 emails per second and 5,000 emails per day. On Pro and Business, Emailit raises these limits automatically when your sending is healthy. Emailit checks every hour and raises the limits when all of these are true:
- every window with at least 100 unique recipients has a bounce rate under 2%,
- no domain in the workspace is paused and the workspace isn’t suspended,
- the last raise was at least 7 days ago.
Each raise moves both limits one step up these ladders:
| Limit | Steps |
|---|---|
| Emails per day | 500 → 1,000 → 2,000 → 5,000 → 10,000 → 25,000 → 50,000 → 100,000 → 250,000 → 500,000 → 1,000,000, then +25% per raise up to 2,000,000 |
| Emails per second | 2 → 5 → 10 → 20 → 50 → 100 → 200 → 500 → 1,000, then +25% per raise up to 2,000 |
On Pay as you go, or if you need more than the next step, request an increase from the Sending Limits card on the Dashboard with Request Increase. See Limits.
| Pay as you go | Pro | Business | Custom | |
|---|---|---|---|---|
| Sending limit increases | On request | Automatic, based on sending health | Automatic, based on sending health | By agreement |
Recover from a low score
-
Find the source. The Sending health card names your weakest domain. In Email APIEmails, filter by Status
bouncedand by Domain to see which recipients and which send caused it. -
Stop the bad send. Pause the campaign, import or automation that’s mailing the bouncing addresses.
-
Clean the list. Run the list through email verification and remove
invalid,disabledanddisposableresults. Keep automatic suppression on. -
Dilute with good mail. The score is a rate over 7 to 90 days. Sending to engaged, valid recipients brings it down over time. The 7-day window recovers fastest, but the worst window decides your status.
-
Contact support for a paused domain or suspended workspace. Explain what caused the bounces and what you changed. Paused domains and suspended workspaces are restored by the Emailit team.