If your emails land in spam, promotions, or bounce, you should check email sending reputation using MailTester immediately. This tool helps you identify whether your domain authentication and email practices work correctly.
Often, ISPs (Internet Service Providers) and ESPs (Email Service Providers) reject or filter messages when DKIM, SPF, or DMARC records are misconfigured. Without proper authentication, even legitimate emails may be flagged. That’s why you should always check email sending reputation using MailTester before sending major campaigns.
To check your email sending reputation, follow this process:
First go to https://www.mail-tester.com/
Copy the email address link provided by https://www.mail-tester.com/ . Do not close the tab of the browser. Leave it open.
Then go to another tab and sign in to MailBluster. Go to Brand > Campaign and click on your desired campaign. Scroll down and click on Send test email.
And paste the email link of mail-tester in the Recipients email address field of the Test email pop up box. Then click Send test email.
Now Click on Then check your score and you will be forwarded to a page with detailed results similar to this:
You can copy the shared link (highlighted) below to share the score with anyone, example tech team or support team
You will get detailed information whether your DNS MX records configured correctly or not by clicking each of the section:
By following these steps and regularly testing, you can improve inbox placement and prevent your emails from being filtered. Always remember to check email sending reputation using MailTester before major campaigns—it helps protect your sender reputation and ensures better engagement.