Top 5 Mail-Tester Alternatives in 2025 (Ranked & Compared)

Mail-Tester is a simple spam checker tool that tells you where your emails are likely to land.

It’s a good tool for running quick spam checks.

But if you want to know where you’re emails will land accurately, Mail-Tester won’t make the cut.

In fact, when I tested it, all it gave me was some basic info.

Nothing really useful to completely gauge the true impact on deliverability.

So, if you’re serious about ensuring your emails hit the Primary Inbox, I’ve put together a list of 5 Mail-Tester alternatives that are way more reliable.

Jump in and keep reading!

TLDR: 3 Mail-Tester Alternatives in 2025

Here’s a quick view of the 3 best alternatives on my list:

• Overall Best Mail-Tester Alternative: Inbox Radar is an inbox placement testing solution that shows you accurately where your emails will land for different ESPs. Plus, it also checks various factors related to your content, domain, and IP that can affect deliverability. 
• Advanced Inbox Placement Testing for Newsletters: MailGenius is a user-friendly alternative to Mail-Tester. It does exactly what Mail-Tester does, but with added automation capabilities.
• Best for Deeper Insights: GlockApps is ideal if you’re looking for a more detailed analysis of inbox placement, spam filters, and overall email performance.

Top 5 Mail-Tester Alternatives and Competitors Explained in Detail

To compile my list of the best Mail-Tester alternatives, I first ran spam checks using multiple tools on the market. Here’s how I evaluated the tools and their results: 

• Ease of use and setup.
• Seed list quality.
• Automation options.
• Deliverability tips. 

Here are the winners that made it to my list of the top Mail-Tester competitors in 2025: 

1. Inbox Radar
2. MailGenius
3. GlockApps
4. MailReach
5. Unspam.Email

1. Inbox Radar by Saleshandy

First on my list of the best Mail-Tester alternatives is Inbox Radar by Saleshandy.

It helps you run inbox placement tests across ESPs like Gmail, O365, and Outlook, for both personal and professional domains.

You can test placement in three ways: 

• Recurring tests for automating your inbox placement tests for cold emails.
• Manual tests for checking where a specific email will land (best for occasional or one-time tests).
• External tests, if you want to use your own sending platform to run a placement test.

But that’s not all!

Let me show you why Inbox Radar makes the top of my list of the best Mail-Tester alternatives.

Why Inbox Radar is The Best Mail-Tester Alternative

With Inbox Radar, you will actually send emails to various inboxes to know exactly where your emails will land.

Additionally, Inbox Radar checks and verifies your email authentications, and it scans your domains and IPs against 30+ blacklists.

On the other hand, Mail-Tester evaluates your email and assigns a score indicating how likely your email will land in the inbox.

You can also customize your inbox placement tests by adjusting:

• The test schedule, including day, time, and time zone of your test emails.
• Delivery settings: whether you want to send all test emails at once or one by one.
• Specific ESPs for which you want to test email deliverability.
• Sender accounts you want to use run the placement test.

So, Inbox Radar is the ideal alternative if you want accurate placement information across multiple ESPs!

Pros of Inbox Radar

• Works with all top ESPs.
• The UI is clean and easy to use.
• You can easily share test reports.
• Integrates seamlessly with Saleshandy’s cold email automation platform.

Cons of Inbox Radar

• Only offers one test with the free trial.

Pricing (Billed Annually)

Inbox Radar offers two different plans:

• Inbox Starter – $23/month (15 placement tests/month)
• Inbox Pro – $79/month(unlimited test credits)

One unique feature of the Pro plan is that Saleshandy will automatically pause your cold email sequences if your deliverability score drops below a score you’ve specified.

2. MailGenius

If you need a Mail-Tester alternative that offers more advanced spam checking capabilities, MailGenius might be worth a shot.

Why MailGenius Is a Better Alternative to Mail-Tester

MailGenius is better than Mail-Tester for three main reasons:

• It has a cleaner interface that doesn’t require you to have any technical expertise.
• MailGenius also monitors prominent ESP and IP blacklists. 
• Unlike Mail-Tester, you can automate your tests with MailGenius (select plans only).

Pros of MailGenius

• Pricing plans are affordable.
• Offers API support on request.
• Offers whitelabeling for agency needs.
• Gives recommendations on how to fix spam issues.

Cons of MailGenius

• Automation is available only in the highest paid plan.
• It does not accurately tell where your emails will land.

MailGenius Pricing (Billed Annually)

• Newbie: $8/month (10 credits)
• Standard: $20/month (30 credits)
• Genius: $39/month (unlimited credits)
• Automated: $79/month (unlimited credits)

3. GlockApps

GlockApps is a popular email deliverability testing solution that offers robust spam and inbox placement testing features.

You can check three aspects of your emails through GlockApps’ inbox placement test: 

• Deliverability with major ESPs.
• Content analysis, including text, HTML, and images.
• Authentication records to ensure they’re working properly.

It also checks 50+ blacklists to find out if you’re listed on any of them. 

Why GlockApps Is a Better Alternative to Mail-Tester

GlockApps outperforms Mail-Tester in three ways.

First, it uses a large seed list of emails across providers like Gmail, Yahoo, AOL, Outlook, and others. It also provides an ESP-wise breakdown of your email deliverability.

Second, GlockApps uses four different spam filters to test your email, including Gmail, Microsoft, Barracuda, and SpamAssassin.

So, you can get detailed insights into how different spam filters grade your emails. 

Third, you can automate your spam tests with any of GlockApps’ paid plans.

So, if you’re looking for a Mail-Tester alternative you can use to test your emails against a wide range of spam filters, GlockApps is a good option.

Pros of GlockApps

• Shows you a preview of your email.
• You can customize the seed list for spam testing.
• Offers three free tests every 24 hours (without detailed reports).

Cons of GlockApps

• The pricing plans might be too expensive for solopreneurs, SMBs, and startups.

GlockApps Pricing

• Credits Pack 1 – $16.99 (3 tests)
• Credits Pack 2 – $47.99 (10 tests)
• Credits Pack 3 – $75.99 (20 tests)

Read our full GlockApps Reviews.

4. MailReach

Next on my list is MailReach, an email deliverability platform that you can use to run detailed spam checks and inbox placement tests. 

It gives you a spam score based on three main factors:

• Authentication records (SPF, DKIM, DMARC).
• Links, HTML code, and image-to-text ratio.
• Spammy content and language that might trigger ESPs.

MailReach also checks several prominent blacklists to ensure that your domain or IP is not listed on any of them.

Why MailReach Is a Better Alternative to Mail-Tester

MailReach is a better Mail-Tester alternative for two reasons.

First, MailReach sends your email to a seed list with 40+ email accounts across ESPs like Gmail, Outlook, and Yahoo.

Second, MailReach also offers detailed insights you can use to fix your email deliverability. This will give you an idea of how different spam filters and ESPs are reacting to your email.

MailReach also sends you notifications about your inbox placement tests via Slack or other apps through webhooks!

Pros of MailReach

• Clean user interface. 
• Works with any inbox that has an SMTP connection.
• Offers email warmup capabilities (as a separate product/add-on).

Cons of MailReach

• Spam test credits are expensive.

MailReach Pricing

MailReach offers two different pricing options: monthly and pay-as-you-go.

For example, if you want to run 200 tests, you’d have to pay:

• $43.2/month under the monthly pricing option.
• $54 under the pay-as-you-go plan.

Read our full MailReach Reviews.

5. Unspam.Email

Last on my list of Mail-Tester alternatives is Unspam.Email.

It’s a simple but effective tool that is ideal for testing the placement of your newsletters with various ESPs.

You can also check the spaminess of your emails

 Here’s what Unspam.Email checks during its spam test:

• SPF, DKIM, and DMARC Records.
• Reverse DNS and Domain Suffix & Age.
• Content analysis and SpamAssassin score.
• Links, short URLs, and HTML.

Additionally, it also monitors domain and IP blacklists and tells you if your email is listed on any of them. 

Why Unspam.Email Is a Better Alternative to Mail-Tester

Unlike Mail-Tester, Unspam.email offers dedicated seed lists for inbox placement testing, including emails from all major ESPs like Gmail, Yahoo, and Outlook.

Additionally, Unspam.email provides an AI-generated heatmap of your email, showing where your audience is likely to spend the most time. This is not available in Mail-Tester

The best part? Unspam.email gives you AI-powered, detailed insights to improve your email deliverability.

For example, it provides:

• Step-by-step instructions for setting up your authentication records
• HTML tag guidelines for better deliverability
• Personalized advice tailored to improving inbox placement

Pros of Unspam.Email

• Comes with a forever-free plan (10 tests/month).
• Offers a separate plan for agencies.

Cons of Unspam.Email

• You can only test your deliverability for personal accounts, not professional domains.

Unspam.Email Pricing (Billed Annually)

• Basic: $90/year
• Business: $190/year
• Agency: $290/year
• API: Custom pricing.

Optimize Your Outreach Based on Accurate Inbox Placement

I’ve covered 5 Mail-Tester alternatives in this blog, but Inbox Radar by Saleshandy stands out.

Instead of just giving you a score like Mail-Tester, Inbox Radar shows exactly where your emails land across multiple inboxes.

You can:

• Automate inbox placement tests
• Monitor blacklists
• Get actionable insights to improve deliverability

With a large seed list, multiple test options, and an easy setup, Inbox Radar outperforms the rest.

Take the free trial, run a test, and see if it’s the Mail-Tester alternative for you!

Mail-Tester Alternative: FAQs

1. What Is Mail-Tester?

Mail-Tester is a spam checker tool that evaluates your emails and tells you how likely your email is to make it to the inbox.

2. Is Mail-Tester Accurate?

Mail-Tester is not accurate at all for spam and inbox placement testing. It just checks very basic factors that affect deliverability.

3. Is Mail-Tester Free to Use?

Not exactly, you get three free spam tests every 24 hrs. If you want to run more tests, you have to get a paid subscription.

4. What is the Best Mail-Tester Alternative for testing the placement of Cold Emails?

For cold email placement testing, Inbox Radar is the ideal alternative. You can actually test and see where your cold emails land across multiple inboxes. Based on the insights, you can fine-tune your campaigns for maximum deliverability.

5. Does Mail-Tester Show if My Emails Land in the Inbox or Spam?

No, it doesn’t. Mail-Tester gives you a score that tells you how likely your emails will land in the Primary inbox.