Deliverability issues can be the difference between your email marketing success or failure. To achieve better inbox placement, the Glock App Inbox Insight tool will rate your email from 1-100 and show you exactly where your emails land in your recipient’s mailbox: Primary Inbox, Promotions Tab, or Spam Folder.
Anyone can use Inbox Insight, regardless of your email service provider. This tutorial will show you how you can test your email campaigns and find any deliverability issues before you hit Send:

We recommend selecting all the available providers and spam filters so that you get a thorough insight into your email deliverability.

You can also add a quick note on your test. This can help you differentiate the tests if you run several tests for the same email copy. After you do that, click Next.

Now, you must send an email to the industry-leading Seed List (a group of real mailboxes allocated worldwide and managed by GlockApps).
The ID string is unique for every spam test. It helps the system link your spam test results to your unique GlockApps report.


If your ESP allows you to create a new list or sending group, you can download the Seed List to create a new sending group. Thus, you will be able to use this list for multiple tests.
Be sure to choose a separator for the email addresses on the seed list based on the format supported by your email service provider (semicolon usually works).



🚨To get the most accurate results, send your test email the same way you would email your recipients. It’s important to reproduce the same conditions (ESP, email software, email account, email content, etc.)

Your email message will undergo several checks during your deliverability test.
Under the Deliverability tab in your report, you will find information about:
Your email’s placement in 70 seed mailboxes
Your email authentication records (SPF, DKIM, rDNS, and HELO to IP)
Your sending IP’s’ Sender Score
Where your IP is blacklisted (if the message was sent from a pool of Shared IPs, each IP is tested against public blacklists)
Your email’s spam score for Google Spam Filter, Barracuda, and SpamAssassin
Click on each section of your test results to see an explanation of what each check means, its importance, and relevant recommendations.
You can also access your message headers by clicking on any test email address in the report.

GlockApps will also recommend improving your test results under the Action Steps tab. We recommend you read them and take the suggested steps to improve your email deliverability.

At the top of the report, you can find a range of useful options:

Get Seed List – This allows you to see the test ID string and seed list you used for your test. If your report has undelivered results, retry sending your email with the ID to our seed list. The missing results will be added to the report if the message is delivered.
Edit Note – This allows you to edit your test notes. Notes can help you differentiate the tests if you test the same message multiple times.
View Email – Shows you your email message’s content.
Opens your report in a new tab. You can share the report with anyone by using this public link. Mostly, the Trulyinbox Team will ask for this link.
You may not receive a deliverability report after clicking the View Report button for two reasons.
You forgot to add the ID string to your test email. In this case, GlockApps cannot associate the email with the test.
Your email system or email service provider did not send the message to the GlockApps seed list.
A failed test displays an empty report that says, “Waiting for data…”

Delete or re-use the “Waiting for data” test to avoid losing credit.
First, click on the “Waiting for data” header under Reports, then click Get Seed List, copy the ID string, and paste it into your message.
Resend the message to the seed list using the SMTP server or ESP (no credit will be deducted).
Alternatively, you can delete the “Waiting for data” test, get your credit back, and create a new test in your account.
💡 Tip
Don't hesitate to reach out if you have any questions. We're available on chat and ready to help you as soon as possible. 🤗