description Mail-Tester Overview
Mail-Tester is a remarkably simple yet powerful free tool for quickly assessing email deliverability. It generates a temporary email address and provides a detailed report analyzing your email's spam score, authentication records (SPF, DKIM, DMARC), and inbox placement across various providers like Gmail, Yahoo, and Outlook. While it doesn't offer ongoing monitoring or advanced features, its instant feedback is invaluable for troubleshooting initial setup and identifying immediate deliverability problems. Ideal for small businesses and marketers needing a quick sanity check before sending campaigns.
help Mail-Tester FAQ
How does Mail-Tester check an email campaign?
Mail-Tester gives you a temporary inbox address, then scores the email you send to it. The report checks factors such as spam-like content, sender authentication, blacklists, and DNS records.
Does Mail-Tester check SPF, DKIM, and DMARC?
Yes, Mail-Tester reports on SPF, DKIM, and DMARC because those records affect sender authentication. That makes it useful before sending campaigns from tools like Mailchimp, Brevo, or a self-hosted SMTP setup.
Is a 10 out of 10 Mail-Tester score enough to guarantee inbox placement?
No, a strong Mail-Tester score is helpful but it does not guarantee Gmail, Outlook, or Yahoo inbox placement. Real deliverability also depends on sender reputation, list quality, engagement, complaint rate, and sending history.
What should I send to Mail-Tester: a test email or the real campaign?
You should send the actual campaign content from the same sending system you plan to use. Testing a plain text placeholder from a different SMTP server will not accurately reflect the final email's authentication or spam signals.
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