Email delivery and email deliverability may sound like the same thing, but they measure different parts of the email journey. Email delivery tells you whether the recipient’s mail server accepted your email. Email deliverability goes one step further and looks at whether the email actually reached the inbox instead of being sent to spam or another folder.
For example, you could have a 99% email delivery rate, but that does not mean 99% of your emails reached the inbox. Some of those emails may have been accepted by the recipient’s mail server but later filtered into spam, where the recipient may never see them. This means a high delivery rate does not always mean your emails are reaching your audience.
Understanding delivery vs. deliverability is important because these metrics can point to different email problems. A low delivery rate may be caused by invalid email addresses or bounce issues. Poor deliverability, on the other hand, can be linked to your sender reputation, email authentication, list quality, or sending practices.
In this guide, we will explain the difference between email delivery rate and email deliverability rate, how each one is measured, and what makes a good rate for your email campaigns.
What is Email Delivery Rate?
Email delivery rate is the percentage of emails that successfully reach the recipient’s mail server after you send a campaign. In simple terms, it tells you how many of your emails were accepted for delivery and how many could not be delivered.
For example, if you send 1,000 emails and 980 of them reach the recipients’ mail servers, your email delivery rate is 98%. The remaining 20 emails may have bounced because the email addresses were invalid, the recipient’s mailbox was full, or the receiving server rejected the message.
A high delivery rate is generally a good sign because it means most of your emails are getting past the first stage of the delivery process. However, it does not tell you whether those emails actually reached the inbox. An email can be successfully delivered to the recipient’s mail server and still end up in the spam folder.
What is Email Deliverability Rate?
Email deliverability rate refers to the percentage of emails that successfully reach the recipient’s inbox instead of being filtered into spam or another folder. It gives you a better idea of whether your emails are actually reaching your audience where they are most likely to see them.
For example, if you send 1,000 emails and most are accepted by the receiving mail servers, your delivery rate may be very high. But if a large number of those emails end up in spam, your email deliverability rate is not as strong as your delivery rate suggests.
Several factors can affect deliverability, including your sender reputation, email authentication, list quality, engagement, spam complaints, and sending practices. Internet service providers and mailbox providers use these signals to decide where your emails should go.
A good deliverability rate means more of your emails are reaching the inbox and fewer are being filtered or blocked. However, there is no single average email deliverability rate that applies to every sender. It can vary depending on your industry, audience, email service provider, and overall sending practices.
Email Delivery Rate vs. Email Deliverability Rate: A Side-by-Side Comparison
When it comes to delivery vs. deliverability, the easiest way to understand the difference is to look at what each metric tells you. Both are important for measuring email performance, but they answer different questions.
Email delivery rate answers: Did the recipient’s mail server accept my email?
Email deliverability rate answers: Did my email actually reach the recipient’s inbox?
Here is a quick comparison:
| Factor | Email Delivery Rate | Email Deliverability Rate |
| Definition | The percentage of sent emails accepted by the recipient’s mail server. | The percentage of sent emails that successfully reach the recipient’s inbox. |
| What it measures | Whether your emails were successfully delivered to the receiving mail server. | Whether your emails reached the inbox instead of spam or another folder. |
| Where the email ends up | The email reaches the recipient’s mail server, but it may still go to the inbox, spam, or another folder. | The email reaches the recipient’s inbox. |
| Main factors affecting it | Invalid email addresses, hard bounces, soft bounces, server errors, and blocked emails. | Sender reputation, email authentication, engagement, spam complaints, list quality, and sending practices. |
| How it is measured | Usually calculated by comparing successfully delivered emails with the total number of emails sent. | Usually estimated through inbox placement data, deliverability testing, and other email performance signals. |
| What the metric tells you | Whether your emails are getting past the receiving mail server. | How likely your emails are to reach the inbox and be seen by recipients. |
The key takeaway is that delivery is about acceptance, while deliverability is about inbox placement. A strong delivery rate is important, but it does not automatically mean you have good inbox placement. Looking at both metrics gives you a clearer picture of how well your emails are reaching your audience.
What is a Good Email Delivery and Deliverability Rate?
There is no single number that tells you whether an email program is healthy. A good rate depends on your audience, industry, email type, list quality, sending volume, and the mailbox providers you send to. It is also important to keep email delivery rate and inbox placement separate when looking at benchmarks.
What is a Healthy Email Delivery Rate?
For most legitimate, permission-based email programs, a delivery rate in the high 90% range is a good target. Some current industry benchmarks place healthy delivery around 95% to 99% or higher. A lower rate can be a warning sign that your list contains too many invalid or inactive addresses, or that receiving servers are rejecting your emails. If your delivery rate suddenly drops, look at your bounce rates, sending volume, list quality, and authentication setup.
However, a 99% delivery rate should not automatically be treated as excellent email performance. Remember that delivery only means the receiving server accepted the message. It does not tell you where the message was placed afterward.
What is Considered a Good Email Deliverability Rate?
For deliverability, it is better to look at inbox placement rather than simply asking whether an email was delivered. As a general goal, senders should aim for 90% or higher inbox placement, with 95%+ being a strong target for a healthy, permission-based list.
That said, current benchmark reports show that actual inbox placement can be much lower. For example, one 2026 benchmark based on 2025 data puts the global average at about 87.2%, while placement varies significantly between mailbox providers.
This difference between an industry average and a good target is important. The average tells you where senders currently stand. A target tells you where you should aim.
Why is There No Single “Perfect” Benchmark
Email performance is not the same for every sender. A transactional email such as a password reset may perform very differently from a promotional newsletter. Your industry, sending frequency, subscriber engagement, list source, and sender reputation can all affect inbox placement.
Mailbox providers also have different filtering systems. An email program may have excellent placement at Gmail but struggle with Outlook or another provider. This is why one overall deliverability number can sometimes hide an important problem.
How to Improve Your Email Delivery and Deliverability Rates
A strong delivery and deliverability rate does not happen by accident. You need to keep your email list healthy, authenticate your domain, and pay attention to how recipients and mailbox providers respond to your emails. Here are some practical ways to improve both.
Keep Your Email List Clean
A healthy email list is one of the most important parts of good email performance. Regularly remove invalid, outdated, or unwanted email addresses from your list. Sending emails to addresses that no longer exist can increase your bounce rate and may hurt your sender reputation over time.
Remove Inactive or Invalid Addresses
Not every subscriber will stay engaged forever. If someone has not opened or clicked your emails for a long time, consider running a re-engagement campaign before removing them. You should also remove addresses that repeatedly bounce.
This helps you focus your sending on people who actually want to receive your emails.
Maintain a Good Sender Reputation
Your sender reputation plays a major role in whether mailbox providers trust your emails. High bounce rates, spam complaints, and poor engagement can hurt that reputation.
Send emails consistently, use a permission-based list, and avoid sending large volumes of unwanted messages. If you are starting with a new domain or IP, build your sending volume gradually instead of sending a huge campaign right away.
Avoid Spammy Sending Patterns
Sending emails too quickly, using misleading subject lines, or repeatedly sending unwanted messages can increase the chances of your emails being filtered.
Make sure your emails provide something useful to recipients. Avoid practices that could lead people to mark your messages as spam, and give subscribers an easy way to unsubscribe.
Monitor Bounces and Spam Complaints
Do not wait for your delivery rate to fall before checking what is going wrong. Keep an eye on hard bounces, soft bounces, spam complaints, and other delivery errors after every major campaign.
A sudden increase in bounces or complaints can be an early warning that something needs attention. Finding the problem early gives you a better chance of protecting your sender reputation.
Send Relevant Emails to Engaged Subscribers
Sending the right message to the right audience can improve engagement and reduce spam complaints. Segment your subscribers based on their interests, activity, or past interactions with your emails.
You can also use engagement data to identify inactive subscribers and decide whether they should receive fewer emails or be removed from your list.
Track Delivery and Inbox Placement Over Time
Do not look at your delivery rate only once and assume everything is fine. Track it over time and compare it with other metrics such as bounce rate, spam complaints, opens, and clicks.
It is also useful to monitor inbox placement, because an email can be accepted by the recipient’s mail server and still end up in spam. Looking at both delivery and inbox placement gives you a much clearer picture of your email performance.
Check and Maintain Your Email Authentication
Email authentication helps mailbox providers verify that your emails are really coming from your domain. Make sure your SPF, DKIM, and DMARC records are correctly set up and regularly checked. Errors or missing records can affect your email delivery and make it harder for mailbox providers to trust your messages.
You can use SPF Record Lookup, DKIM Record Lookup, and DMARC Record Lookup to check whether your DNS records are published correctly.
Build a Stronger Email Sending Strategy
Email sending is becoming more demanding as mailbox providers continue to improve how they identify trusted senders. That means maintaining good email practices should be an ongoing part of your strategy, not something you only think about when emails start landing in spam.
As your email volume grows, make regular checks part of your workflow. Review your domain authentication, test important campaigns before sending them, and watch for small changes that could turn into bigger delivery problems.
You can also test your emails with a tool like Mail-Tester to find potential authentication, spam, and configuration issues. Checking your records and testing your emails regularly can help you spot problems early and keep your email program ready for future changes.
