Free Email Tester: The Quick, Precise Deliverability Test & Spam Checker

Welcome to Inbox, Spam, or Promotions — the 100% free email tester created by Ajay Goel, GMass founder and one of the world’s leading Gmail experts! Is your email campaign destined for the inbox or the spam folder? Now you can check deliverability in advance.

With this free email tester, you’ll send your campaign from any email marketing service to a group of specific addresses — and watch your deliverability test in real time.

Our email deliverability tester is also a spam checker; some of the accounts even have popular spam filters installed like Barracuda, Mimecast, and Sophos.

Ready to test your email deliverability? Let’s go!

1. Start the Free Email Tester by Sending Your Campaign to These 16 Addresses

Copy these addresses to clipboard.

2. Watch Your Deliverability Test and Spam Checker in Real Time as Your Emails Land in the Accounts Below


[email protected]
10-year-old Gmail account
No matching emails found. Clear search.

    [email protected]
    Google Workspace filtered by Barracuda
    No matching emails found. Clear search.

      [email protected]
      Google Workspace
      No matching emails found. Clear search.

        [email protected]
        Google Workspace
        No matching emails found. Clear search.

          [email protected]
          Google Workspace
          No matching emails found. Clear search.

            [email protected]
            Gmail
            No matching emails found. Clear search.

              [email protected]
              Gmail
              No matching emails found. Clear search.

                [email protected]
                Gmail
                No matching emails found. Clear search.

                  [email protected]
                  Gmail
                  No matching emails found. Clear search.

                    [email protected]
                    Gmail
                    No matching emails found. Clear search.

                      [email protected]
                      Gmail
                      No matching emails found. Clear search.

                        [email protected]
                        Gmail
                        No matching emails found. Clear search.

                          [email protected]
                          Google Workspace
                          No matching emails found. Clear search.

                            [email protected]
                            Google Workspace
                            No matching emails found. Clear search.

                              [email protected]
                              Google Workspace
                              No matching emails found. Clear search.

                                [email protected]
                                Google Workspace
                                No matching emails found. Clear search.
                                  Fixing Your Email Campaign Based on Mail Tester Results

                                  If the deliverability test came up “spam,” here are short-term and longer-term solutions.

                                  Quick deliverability fixes you can try for *this* campaign

                                  Long-term solutions are great… but we need to get this campaign into people’s inboxes. Here are some tweaks to try:

                                  GMass users have access to our unique Spam Solver tool, the easiest way to test deliverability, tweak an email, then re-test until you’re hitting the inbox. Learn more about Spam Solver.

                                  Longer term deliverability fixes so future emails will hit the inbox, not spam folder

                                  You can train Google and the other email providers to (almost) always place your emails in the inbox.

                                  Love Our Free Email Tester? See Why 99% of GMass Users Report the Best Deliverability They’ve Ever Had

                                  Not seeing the deliverability numbers you want from your cold email or email marketing platform? 99% of GMass users report the best deliverability they’ve ever had.

                                  Learn more about GMass by taking the tour — but really, the best way to see how GMass will work for you is to download the Chrome extension. It’s free to start — send up to 50 emails every day until you’re ready to upgrade.

                                  Find out why GMass is the most popular Gmail mail merge tool in the world

                                  Easy to learn. Easy to use. Packed with time saving, email enhancing features.

                                  Try GMass for free Then check out the quickstart guide to send your first mail merge email in minutes!

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