Since then, I make it a habit to run an email deliverability test before every major campaign. It helps me check:<\/p>\n\n\n\n
- \n
- If my domain and DNS setup are correct<\/li>\n\n\n\n
- Whether my sender reputation is strong<\/li>\n\n\n\n
- How my emails are placed across Primary, Promotions, or Spam<\/li>\n<\/ul>\n\n\n\n
In this blog, I will explain what an email deliverability test is, how to run one effectively, and which tools can help you measure and improve inbox placement.<\/p>\n\n\n\n
By the end, you will know how to find the cause of poor deliverability and make sure your emails reach the inbox every time.<\/em><\/strong><\/p>\n\n\n\n
\n\n Email Deliverability Test \u2013 TOC<\/span>\n <\/h2>\n
- \n
- What Is an Email Deliverability Test?<\/a><\/li>\n
- Why Testing Your Email Deliverability Matters?<\/a><\/li>\n
- How to Test Email Deliverability (Step-by-Step)<\/a><\/li>\n
- Can You Run an Email Deliverability Test Manually?<\/a><\/li>\n
- What Are the Best Email Deliverability Testing Tools in 2026?<\/a><\/li>\n
- Proactively Fix Your Email Deliverability Issues<\/a><\/li>\n
- FAQs on Email Deliverability Testing<\/a><\/li>\n <\/ul>\n<\/div>\n\n\n\n
What Is an Email Deliverability Test?<\/h2>\n\n\n\n
An email deliverability test predicts how likely your emails are to reach your recipients\u2019 inboxes<\/em><\/strong>.<\/p>\n\n\n\n
In this test, you will be checking all the technical factors that influence deliverability, such as:<\/p>\n\n\n\n
- \n
- Authentication setup (SPF, DKIM, DMARC)<\/li>\n\n\n\n
- Domain and IP reputation<\/li>\n\n\n\n
- Blacklist status<\/li>\n\n\n\n
- Spaminess of email content<\/li>\n\n\n\n
- And more.<\/li>\n<\/ul>\n\n\n\n
Basically, it helps you find all the possible reasons why your emails may not make it to your recipients\u2019 inboxes.<\/p>\n\n\n\n
Worth Knowing:<\/p>\n\n\n\n
The more advanced version of an email deliverability test is the inbox placement test. It actually tests where your emails land after being delivered<\/em><\/strong>, whether in the Primary inbox, Promotions tab, or Spam folder.<\/p>\n\n\n\n
Why Testing Your Email Deliverability Matters?<\/h2>\n\n\n\n
If you want your campaigns to bring in the results you expect, you need to make sure your emails will actually reach your recipients\u2019 inboxes<\/em><\/strong>, and for that, you need to test your email deliverability.<\/p>\n\n\n\n
The main reason to run an email deliverability test is so that you can catch deliverability issues early and fix them before sending real emails<\/em><\/strong>.<\/p>\n\n\n\n
How to Test Email Deliverability (Step-by-Step)<\/h2>\n\n\n\n
You can easily test your email deliverability by doing an email deliverability audit<\/a>.<\/p>\n\n\n\n
It is a process where you check all the technical and content-related factors that affect your ability to reach the inbox.<\/p>\n\n\n\n
Here is how you can do it step by step:<\/p>\n\n\n\n
- \n
- Check Your Authentication Records Setup<\/a><\/li>\n\n\n\n
- Check Your Domain and IP Reputation<\/a><\/li>\n\n\n\n
- Review Your Content<\/a><\/li>\n\n\n\n
- Run a Blacklist Check<\/a><\/li>\n\n\n\n
- Check User Engagement Signals<\/a><\/li>\n<\/ol>\n\n\n\n
Step 1: Check Your Authentication Records Setup<\/h3>\n\n\n\n
Your email authentication records, SPF, DKIM, and DMARC prove to mailbox providers that your emails are coming from a verified and trusted domain.<\/p>\n\n\n\n
If these records are not set up or configured correctly, there is a high chance your emails may not be delivered to your recipients at all<\/em><\/strong>.<\/p>\n\n\n\n
If you are not sure how to set them up, I have a detailed step-by-step guide on how to easily set up your SPF, DKIM, and DMARC records<\/a> that walks you through the process.<\/p>\n\n\n\n
Step 2: Check Your Domain and IP Reputation<\/h3>\n\n\n\n
Your domain and IP reputation play a huge role in how mailbox providers like Gmail, Outlook, etc. decide whether to deliver your emails to the inbox or filter them out.<\/p>\n\n\n\n
A poor reputation can cause your emails to land in spam or be rejected altogether.<\/em><\/strong><\/p>\n\n\n\n
You can check your reputation using tools like Google Postmaster Tools, Talos Intelligence, or Sender Score.<\/p>\n\n\n\n
If you notice a drop in reputation, focus on improving your reputation.<\/p>\n\n\n\n
Also Read:<\/em><\/strong> How to Improve Email Reputation<\/a><\/p>\n\n\n\n
Step 3: Review Your Content<\/h3>\n\n\n\n
Your email content has a direct impact on your deliverability.<\/p>\n\n\n\n
Even if your setup and reputation are strong, spammy content can still cause your emails to be filtered.<\/p>\n\n\n\n
Avoid using misleading subject lines, excessive punctuation, or trigger words that resemble spam.<\/em><\/strong><\/p>\n\n\n\n
Keep your message short, relevant, and personalized. Also, make sure your links work, your text-to-image ratio is balanced, and your email renders well on both desktop and mobile.<\/p>\n\n\n\n
If you want to be extra sure, you can run your content through a spam checker tool before sending to see how mailbox filters might score it.<\/p>\n\n\n\n
Worth The Read:<\/em><\/strong> How to Stop <\/a>E<\/a>mails From Going to Spam?<\/a><\/p>\n\n\n\n
Step 4: Run a Blacklist Check<\/h3>\n\n\n\n
Blacklists<\/a> are databases that track domains and IP addresses known for sending spam or suspicious emails.<\/p>\n\n\n\n
Email service providers (Gmail, Outlook, Yahoo, etc.) use these lists to decide whether to trust incoming messages.<\/p>\n\n\n\n
If your domain or IP appears on one, your emails may get blocked or sent straight to spam.<\/em><\/strong><\/p>\n\n\n\n
You can check your blacklist status using tools like MXToolbox, MultiRBL, or Spamhaus.<\/p>\n\n\n\n
Step 5: Check User Engagement Signals<\/h3>\n\n\n\n
The major trust signal that ESPs use is how users interact with your emails.<\/p>\n\n\n\n
High engagement, such as opens, clicks, and replies, tells mailbox providers that your emails are relevant and trustworthy<\/em><\/strong>.<\/p>\n\n\n\n
On the flip side, low engagement shows that your emails are not relevant or wanted by your recipients.<\/p>\n\n\n\n
If this continues, mailbox providers may start filtering your emails into the spam folder<\/em><\/strong>.<\/p>\n\n\n\n
So, look into improving your targeting and content.<\/p>\n\n\n\n
Once you have completed these checks, you will have a clear picture of your current email deliverability status and what needs attention next.<\/p>\n\n\n\n
Can You Run an Email Deliverability Test Manually?<\/h2>\n\n\n\n
With so many factors to check, you might wonder if it is even possible to run an email deliverability test manually.<\/p>\n\n\n\n
The short answer is yes, but it takes a lot of time and effort<\/em><\/strong>.<\/p>\n\n\n\n
Plus, from experience, I can tell you that it is not scalable at all!<\/p>\n\n\n\n
If you still want to do it manually, I have an email deliverability checklist<\/a> you can use to go through every important step before hitting send.<\/p>\n\n\n\n
A more efficient and scalable approach is to use email deliverability testing tools<\/em><\/strong> that automate these checks, give you real-time insights, and help you fix issues faster.<\/p>\n\n\n\n
I will show you some of the best in the next section. Keep reading.<\/p>\n\n\n\n
\n
- Check Your Domain and IP Reputation<\/a><\/li>\n\n\n\n
- Check Your Authentication Records Setup<\/a><\/li>\n\n\n\n
- Why Testing Your Email Deliverability Matters?<\/a><\/li>\n
- What Is an Email Deliverability Test?<\/a><\/li>\n
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