An email delivery tool that makes sure it reaches your inbox.

Monitor key metrics that are preventing you from reaching the inbox and learn how to improve them.

Get Started for Free Start your 14 day free trial now!

Test your mail server configuration in 3 easy steps

Send a Test Email

Assign email addresses. First, send an email to this address from the email server you're testing

2. Get your results in minutes

Within minutes, you will receive the results, showing warnings and important settings detected on your mail server.

3. Fix potential issues

You can use this data to identify and fix potential problems with your mail server and improve your inbox ranking.

placementicon Inbox Placement Test

Where does your email go? Your mailbox provider will let you know if your message was delivered, but it won't tell you if it ended up in your inbox, spam, or a specific tab (such as promotions). With Mailtester’s Inbox Placement Test, you can see where your emails land for each mailbox provider, so you can optimize your campaigns and increase the ROI of your emails.


Test your mail server configuration

Get a monthly free mail server test

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planicon Blacklist Monitoring

Keep your sender reputation secured with Mailtester's comprehensive domain and IP block list monitoring tools. You'll receive an immediate notification of any issues so you can take action to reduce damage to your email.

How Mailtester's Blocklist Monitoring Works

Monitor Your Sending Domains and IP Addresses

Choose which domains or IPs you would like to monitor for better coverage of your email dreams.




5K Credits

$0.0038 per email

10K Credits

$0.0029 per email

30K Credits

$0.0020 per email

50K Credits

$0.0019 per email

100K Credits

$0.0018 per email

300K Credits

$0.0012 per email

500K Credits

$0.0009 per email

1M Credits

$0.0008 per email

2.5M Credits

$0.0005 per email

5M Credits

$0.0004 per email

Customer testimonials

Heath Atwood

Email Marketing Expert

When I signed up for, I was a bit skeptical at first. How much difference can it make for a relatively smaller company like us? Answer: a lot. We didn’t change our email strategy much still our email open rate has increased like 3-4%. I recommend

Caitlynn Potts

Chief Marketing Officer

We were looking for a mail validation service that can handle a large volume of emails and return accurate results. Now is our go-to solution.

Joshua Mcnair


We are a small startup and can’t afford to spend hundreds of dollars every month on email verification.’s flexible pricing plan works for us. And the service you would get is excellent.

Alex Lee

Sales And Customer Success Manager
AB Real Estate

Efficient, reliable and pocket friendly--- I love I have personally recommended this app to my entreprenuer friends.

Jordy Eubanks


Mailtester is awesome. We have big lists here with us and we keep them clean with It never disappoints.

Anaiah Whitten

Marketing Expert

I am a fan. is super accurate and easy to use. I set it up and forget about it. It’s doing its job without any issue.

Start reaching real human
in the inbox today

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