There is no single agreed number. "Deliverability rate" gets used for two different measurements: delivery rate, which is how many emails the receiving server accepted, and inbox placement rate, which is how many actually reached the inbox. Most published benchmarks are the first one, not the second.
For cold email specifically, that gap matters more than it does for a newsletter. A cold message has no opt-in and no reader history, so a server can accept it quietly and still file it straight into spam. This page covers what the numbers mean and what counts as good for each. For the setup work that moves a cold email domain toward a good number, start with our cold email deliverability guide.
What is the difference between delivery rate and inbox placement rate in cold email?
Delivery rate measures whether a receiving server accepted your email. Deliverability, more precisely called inbox placement rate, measures where that accepted email actually landed: the inbox, a tab, or spam.
Mailjet defines the two with separate formulas. Delivery rate is emails delivered divided by emails sent, times 100. Inbox placement rate is emails landing in the inbox divided by emails delivered, times 100. A message that bounces never counts toward either rate. A message that lands in spam counts toward delivery rate but not inbox placement rate.
Litmus puts it plainly: an email counts as delivered if it did not bounce, full stop. Whether it then reached the inbox or the spam folder is a separate question, decided after delivery, based on your domain's authentication and sender reputation.
This is the gap most senders miss. Mailjet's own research found that 88% of the senders it surveyed could not correctly define delivery rate, and more than half assumed it measured inbox arrival. It does not. A 98% delivery rate can sit on top of an inbox placement rate far lower than that, if a meaningful share of the accepted mail is going to spam.
What published cold email deliverability rate benchmarks exist?
Published delivery rate benchmarks cluster above 95%, while published inbox placement rate benchmarks run meaningfully lower, in the 80s. The two numbers are not interchangeable, and most sources that say "deliverability rate" are quoting the first one.
| Source | What it measured | Reported number |
|---|---|---|
| Mailjet | Delivery rate, general guidance | "Typically above 95%" is a good average delivery rate |
| PowerDMARC | Inbox placement rate, their own banding | 98%+ is the top band, 95-97% good, below 95% a warning sign, below 90% code red |
| EmailToolTester | Inbox placement rate, their own seed-test panel across ESPs | 83.1% average in their latest round, with past rounds ranging roughly 79% to 89% since 2017 |
These three numbers describe different things measured different ways, and none of them is a cold email figure. Mailjet and Litmus both research general email marketing senders, mostly newsletters sent to opted-in lists. PowerDMARC's bands and EmailToolTester's panel results are also built on general sending, not one-to-one cold outreach to strangers.
PowerDMARC's page also cites a figure from Mailgun's "State of Email Deliverability" report, attributing the same 88%-cannot-define-the-metric finding that Mailjet reports from its own survey. Treat that overlap as two publishers citing the same underlying confusion, not two independent confirmations of a number.
Why is there no single benchmark for cold email specifically?
There is no agreed cold email deliverability rate benchmark because almost every published figure comes from opted-in marketing lists, and cold outreach starts from a weaker position on every signal a filter checks. A newsletter subscriber asked for the mail. A cold prospect did not, and has no open or reply history with the sender to vouch for them.
PowerDMARC's FAQ cites a Belkins industry breakdown with rates near 99% for some cold email industries, but that claim does not appear on the Belkins page it links to. What Belkins' cold email study does report is a 1.71% B2B cold email bounce rate for 2025, which implies 98.29% of mail was accepted by the receiving server. That is a delivery rate, not an inbox placement rate, and it comes from an agency's own client data rather than an independent audit.
Two structural reasons explain why a cold-specific number is hard to pin down:
- No opt-in baseline. Mailbox providers weigh engagement signals like opens and replies heavily, and a cold prospect has none of that history on the first send.
- Brand-new domains. Much cold email runs from recently registered sending domains with no track record, while most newsletter benchmarks come from domains that have sent mail for years.
Because of this, treat every number above as context for how filters behave in general, not as a target to hit for a cold campaign specifically.
Which rate should you actually track for cold email?
Track inbox placement rate wherever you can measure it directly, and treat delivery rate as a floor check, not a success metric. A delivery rate near 100% only tells you your list is clean and your domain is not blocked outright.
Google's sender guidelines give the one number that functions as a real ceiling rather than a target: spam complaints should stay below 0.3% as reported in Postmaster Tools, and Google recommends staying under 0.1%. That is a complaint-rate rule, not a deliverability-rate benchmark, but it is the closest thing to an enforced number that actually exists.
Beyond that single hard line, the honest standard for a cold email program is comparative, not absolute:
- Delivery rate near 100%, with bounces under 2%, confirms your list and authentication are clean.
- Inbox placement rate, measured through a real test, tells you what delivery rate cannot. Our email deliverability test guide covers how to run that test and calculate the rate yourself.
- A rate that holds steady or improves across repeated tests on the same domain matters more than hitting any specific published number borrowed from newsletter benchmarks.
| Metric | What it answers | Read it as |
|---|---|---|
| Delivery rate | Did the server accept the mail | A floor check, not a success metric |
| Bounce rate | Is the list clean | Under 2% healthy, 3% act |
| Spam complaint rate | Are recipients reporting it | Under 0.1% is Google's recommended target |
| Inbox placement rate | Did it actually reach the inbox | The real number, measured by test, not assumed |
How do you read your own cold email deliverability numbers against these benchmarks?
Read your delivery rate against the 95%+ general benchmark first, since a domain failing that check has a setup problem before deliverability even becomes the question. Authentication gaps, a dirty list, or a blocked domain will show up here.
Once delivery rate is healthy, the benchmarks above become reference points, not pass marks. A seed test showing 85% inbox placement is not automatically bad. It sits close to EmailToolTester's own average. But it says nothing about whether real cold prospects at Gmail or Outlook, with no opt-in and no history, see the same result. Our why cold emails go to spam page covers the setup causes behind a weak number once you have measured one.
Pipefire holds every mailbox out of cold sending until its warm-up mail stays under a 10% spam rate. That check needs at least 20 warm-up emails over the trailing 7 days, and a sending mailbox gets pulled back into warm-up if the rate later climbs past 20%. Alongside that, Sentinel pauses a campaign automatically at a 3% bounce rate or a 0.1% complaint rate. Our deliverability page shows how those thresholds work together.
Cold email deliverability rate FAQ
What is a good email deliverability rate for cold email?
It depends which metric you mean. A good delivery rate, the share of mail a server accepts, is typically above 95%. A good inbox placement rate, the share that lands in the primary inbox, varies by source, with general benchmarks from EmailToolTester averaging in the low to mid 80s and PowerDMARC treating 98%+ as its top band.
What is the difference between delivery rate and deliverability in cold email?
Delivery rate counts whether a receiving server accepted the email, regardless of which folder it landed in. Deliverability, measured as inbox placement rate, counts only the share that reached the primary inbox rather than spam or a promotions-style tab.
What is an email deliverability score for cold email?
An email deliverability score is a tool's own composite rating, usually built from authentication checks, blocklist status and sometimes a seed-test result, and the scale differs by tool. It is not the same fixed metric as inbox placement rate, so compare scores within one tool over time rather than across different tools.
How do you improve a low cold email deliverability rate?
Start with authentication and list hygiene, since those drive the delivery-rate floor, then move to warm-up and volume, which drive inbox placement. Our cold email deliverability guide covers the full order of fixes.
Is there a cold email deliverability rate benchmark?
No independently audited one exists as of this writing. Belkins, a cold email agency, reports from its own client data that 98.29% of B2B cold email was accepted by receiving servers in 2025. That is a delivery rate, not an inbox placement rate, and not an external benchmark.