# Mail-Tester review (2026): is the free plan enough? > Send an email to a test address and get a spam score out of 10 Checked Nov 12, 2026 ยท graded Nov 12, 2026 by ToolGPA. Mail-Tester gives each visitor a random address to send a message to, then analyzes the message, the sending server and the sending IP and shows a score out of 10 with a report of what is and is not configured properly. The web interface is free for a few tests a day. Paid accounts add a JSON API, an iframe, white-labeling and longer result history. - **Category:** Email Verification & Deliverability - **Made by:** Mail Tester LLC - **Website:** https://mail-tester.com - **Runs on:** Web - **Who should skip it:** Tight if you test more than 3 times a day on free, with results kept for 7 days. - **Facts last checked:** Nov 12, 2026 ## Pricing As of Nov 12, 2026, Mail-Tester has a free plan, and paid plans start at $10 per month for 50 tests; or $5 once for 10 tests. - **Pricing model:** Free plan - **Free plan:** Free web interface: 3 tests per 24 hours, results kept for 7 days. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Free web interface | $0 | 3 tests in any 24 hours, no account needed, results available for 7 days. | | 10 Tests | $5 one-time | A pack of 10 extra tests at $0.50 each. Larger one-time packs run up to 15,000 tests for $700. | | 50 Tests / Month | $10 per month for 50 tests | Subscription with an account; $0.20 per test. | | 500 Tests / Month | $25 per month for 500 tests | $0.05 per test. | | 2,000 Tests / Month | $80 per month for 2,000 tests | Marked most popular on the page; $0.04 per test. | | 7,500 Tests / Month | $250 per month for 7,500 tests | $0.0333 per test. A 25,000-plus tier is quoted on request. | Read from https://mail-tester.com/manager/ on Nov 12, 2026. Prices change, so confirm with Mail-Tester before buying. ## Key features - **Spam score:** Scores a sent message out of 10 using a default SpamAssassin install, with the sign reversed so that a higher score is better. - **Configuration report:** Reviews the message, the mail server and the sending IP, and lists what is set up correctly and what is not. - **JSON API and iframe:** Paid plans let you embed mail-tester results in your own software. - **White-labeling and custom CSS:** Accounts can restyle the result page and fully white-label it, after contacting the company to authorize their domain. - **Usage statistics and history:** Daily, weekly and monthly usage statistics and a list of the last 30 days of tests, with no ads on results. ## Good for - Checking one newsletter or sending setup before a send - Email tools that want a spam test inside their own product - Occasional use without an account ## Worth knowing - Scores come from a stock SpamAssassin setup; the FAQ says other spam filters differ, so a perfect score does not guarantee inbox placement. - The free version allows 3 tests in 24 hours and keeps results for 7 days; an account with your own prefix keeps them 30 days. - Prices exclude VAT. - It tests one message at a time and does not monitor sending over time. ## ToolGPA grades **GPA: 2.8 out of 4**, graded Nov 12, 2026. Mail Tester scores one test email out of 10 and shows what is wrong with it. Free gives you 3 tests in 24 hours with no account, but it runs a stock SpamAssassin setup that other filters do not match, tests one message at a time and does not monitor anything over time. - **Value for money: B.** Subscriptions start at $10 a month for 50 tests, level with the $10 cheaper quarter of deliverability tools. A 10-test pack is $5, and prices exclude VAT. - **Free plan and trial: B.** 3 tests in any 24 hours with no account, results kept for 7 days. One person checking now and then can live on that. - **Features: C.** A spam score, a configuration report and a JSON API. It uses a stock SpamAssassin setup, so a perfect score does not guarantee inbox placement, and it does one message at a time. It does that job fully, and it is a smaller job. - **Ease of use: B.** No store rating on record. You send a mail to a displayed address and read the result, so there is nothing to set up. - **Platforms and integrations: B.** Web only, with a JSON API, an iframe and white-labeling. No desktop or phone app. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Mail Tester's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among email verification and deliverability tools - Mail-Tester's GPA of 2.8 is higher than 35 of the 38 other email verification and deliverability tools we grade, and level with 2. - It stands best on free plan and trial (B, above 34 of 38) and worst on features (C, above 0). - Its paid plans start at $10 a month, against a middle price of $17.49 for the category: 5 of the 25 others that charge start lower. - On features, ease of use and platforms it scores 2.7 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price. The category's chart of price against score: https://toolgpa.com/charts/email-deliverability ## Keep it, or make your own? **Your call.** You could make the core of Mail-Tester for yourself: reports. What you would give up is listed below. Whether that is worth the price is your call. It costs $120 a year. - You could make: Reports: an app builder makes this well. - You could make: It runs in a browser, which is where something home-made would run too. - You could not: An API that other software can build on. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. **Tags:** Public API, Reports ## Alternatives - [GlockApps](https://toolgpa.com/tools/glockapps): Inbox placement testing with DMARC analytics and uptime monitoring. [Compare](https://toolgpa.com/compare/glockapps-vs-mail-tester) - [MxToolbox](https://toolgpa.com/tools/mxtoolbox): Email and DNS lookups plus blacklist and DMARC monitoring. [Compare](https://toolgpa.com/compare/mail-tester-vs-mxtoolbox) - [MailReach](https://toolgpa.com/tools/mailreach): Email warm-up and inbox placement tests, priced per mailbox. [Compare](https://toolgpa.com/compare/mail-tester-vs-mailreach) - [Warmy](https://toolgpa.com/tools/warmy): Email warm-up with seed testing, verification and DMARC monitoring. [Compare](https://toolgpa.com/compare/mail-tester-vs-warmy) - [InboxAlly](https://toolgpa.com/tools/inboxally): Email warm-up and reputation repair through a network of seed inboxes. [Compare](https://toolgpa.com/compare/inboxally-vs-mail-tester) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://mail-tester.com/manager/ - https://mail-tester.com - https://mail-tester.com/faq - https://mail-tester.com/terms-of-service - https://mail-tester.com/manager/micro-payment.html Page: https://toolgpa.com/tools/mail-tester Listed by ToolGPA (toolgpa.com).