INBOX TESTER
The Inbox Placement Tester checks if your emails/newsletters will make it to your recipient’s inbox. This test will allow you to send an email to different mailbox providers around the world and quickly check to see the folder placement of that email (Inbox, Spam, Promotions).
The Inbox Placement Tester uses over 20 different global mailbox providers. This test can diagnose deliverability errors and grant insight into how different mailbox providers handle your email campaigns.
Important Note: If you send out a single email with multiple recipients and CC's, it may be flagged as spam. Please send out multiple emails when testing with fewer To/CC's for better results.
How to use the Inbox Placement Tester
I. Sender email
1. Click the ‘Create New Test’ button.
2. Enter a unique test name.
Select the test type - Sender email
Please be mindful of the number of seeds you select per mailbox provider. Using too many seeds for any one provider may resemble spam-like behavior — particularly with providers where your mailbox has little to no prior engagement. For the most reliable and accurate test outcomes, we recommend that you balance seed usage across providers and avoid excessive volume to a single domain.
3. Fill the Sender email field with the exact From address that will send the test (e.g., newsletters@brand.com).
4. Copy the newly generated email addresses and add them to a new mailing list, or create a new campaign using your email service provider.
5. Send your email to the list of provided email addresses.
II. Unique ID
1. Click the ‘Create New Test’ button.
2. Enter a unique test name.
Select the test type - Unique ID
3. Copy the newly generated email addresses and add them to a new mailing list, or create a new campaign using your email service provider AND Copy the unique test code to your test email body.
5. Send your email to the list of provided email addresses.
Please be mindful of the number of seeds you select per mailbox provider. Using too many seeds for any one provider may resemble spam-like behavior — particularly with providers where your mailbox has little to no prior engagement. For the most reliable and accurate test outcomes, we recommend that you balance seed usage across providers and avoid excessive volume to a single domain.
III. Auto Alias
1. Click the ‘Create New Test’ button.
2. Enter a unique test name.
Select the test type - Auto Alias
NOTE: If you are sending from Yahoo Mail, we recommend selecting the 'Sender email' or 'Unique Id' test type, since Yahoo does not support alias addresses.
Select the providers and their corresponding seed numbers for the test and click on Create Test
3. Copy the newly generated email addresses and add them to a new mailing list, or create a new campaign using your email service provider.
Important: Make sure to include the seed email "testid+vm2qywcxfayr@zbtest.org" in your test email. Failing to do so will result in missing test results.
4. Send your email to the list of provided email addresses.
Please be mindful of the number of seeds you select per mailbox provider. Using too many seeds for any one provider may resemble spam-like behavior — particularly with providers where your mailbox has little to no prior engagement. For the most reliable and accurate test outcomes, we recommend that you balance seed usage across providers and avoid excessive volume to a single domain.
Once the test email has been sent, our recipient inboxes begin the status reporting of your email message.
Inbox Placement Testⓘ results and descriptions
- ResultDescription
- InboxYour email successfully reached the recipient’s inbox.
- OtherAny email that is uncategorized
- SPAMWhen emails are marked spam, it's usually a result of the content or lack of content being sent, your IP hasn't been warmed up, or a mis-configuration of your mail server (Use our ,[object Object], to diagnose).
- MissingWhen emails are missing it's usually a result of a mis-configuration of your mail server (Use our ,[object Object], to diagnose), a virus was detected, or your IP/Domain Name is being blacklisted.
Note:
To ensure accurate results when running an Inbox Placement Testⓘ, we strongly recommend using realistic and verifiable email content. The message sent to our seed list should closely resemble your actual campaigns in terms of layout, tone, subject line, and overall structure. Avoid using placeholder text or test content, as this can trigger spam filters and skew the placement data.