Vatsal Shah If your emails keep landing in spam, it’s not bad luck. It’s poor deliverability.
I’ve tested dozens of tools that claim to fix it.
Most just highlight “spammy” words and call it a day.
A real free email spam checker does more!
It runs:
- Actual inbox placement tests
- SPF, DKIM, and DMARC setup checks
- IP and domain blacklist scans
- Spammy content analysis
All this to give you a clear view of how mailbox providers see your messages.
In this blog, I will share the 4 best free email spam checkers I tested myself.
Each one helps you identify deliverability problems early,
so your emails land where they should: The Inbox.
Free Email Spam Checker – TOC
TL;DR: Top Free Email Spam Checkers in 2025
Crunched for time?
Here is my quick summary of the four free email spam checkers I tested.
Free email spam checkers that will actually show where your emails may land:
Free email spam checkers that only give a score based on your email and setup:
This table will help you quickly decide which tool fits your testing goal.
| Tool | Key Free Features | Best For |
|---|---|---|
| Saleshandy | Real inbox placement test, SPF/DKIM/DMARC check, blacklist scan, and email content spam check with SpamAssassin | Complete deliverability audit before outreach |
| MailReach | Sender reputation insights and spam score analysis | Testing deliverability and domain health |
| GlockApps | Spam score and authentication check, and content scan. | Reviewing setup issues and improving email content hygiene |
| Unspam Email | Basic spam score, blacklist lookup, and content warnings | Quick basic spam checks for marketing emails |
The Only 4 Free Email Spam Checkers That Matter in 2025
1. Saleshandy
If you only try one tool from this list, make it Saleshandy.
It is one of the few free email spam checkers that actually runs an inbox placement test.
That is, you can actually see where in the inbox (Primary, Promotions, Spam)
your emails will land before you send them.
Apart from checking with real accounts, it also runs a full deliverability audit.
- It checks your SPF, DKIM, and DMARC setup,
- Scans for IP and domain blacklists,
- Runs a SpamAssassin-based content analysis to flag risky elements.
All this is to tell you why your email might land in spam
and what you can do to fix it before sending.
It also has a paid version: Inbox Radar
With it, you can test placement across 6 ESPs and over 50 real email accounts.
It is one of the most accurate spam and deliverability checkers for cold email senders and outreach teams.
2. MailReach
Another tool that actually checks inbox placement is MailReach.
You will send your test email (your campaign email) to real inboxes
and see exactly where it lands in Inbox, Promotions, or Spam.
It is not a long report, but it highlights:
- Where your emails landed for different providers
- Whether your authentication setup passed or failed
- Your spam score based on the message structure and content
The free version is limited to one-time tests,
but it is accurate enough to detect key deliverability issues early.
I have also tested the paid version.
You can check my complete review of MailReach to see how it works.
3. GlockApps
If you want a simple spam check without setup, try GlockApps.
It does not test real inbox placement,
but it gives a clear spam score based on your email content and technical setup.
Instead of sending to multiple real inboxes, you will send it to a single test address.
GlockApps will then analyze your content and set up to generate a detailed report.
Though it is not a full deliverability tester,
it is helpful for identifying setup or content issues early.
I have also read a detailed review of GlockApps paid version.
Check it out to see how it performs in real inbox placement and deliverability tests.
Note: The paid version is more comprehensive, offering real inbox placement tests and deeper deliverability insights.
4. UnSpam Email
The last free email spam checker on my list is UnSpam Email.
Unlike most tools, UnSpam Email has a proper free plan.
With it, you get:
- 10 spam tests per month
- 10 email previews per month
- 10 email heatmaps per month
- 3 inbox placement tests per month
It also highlights authentication issues and spam triggers in your email body.
The reports are simple but helpful for regular users who send small batches of emails.
Spam Test Your Emails Before Sending
If you are serious about getting replies, start by making sure your emails actually reach the inbox.
Even the best-written message cannot perform if it is buried in spam.
You do not need complex tools or expensive setups to do this.
Start with a free email spam checker that runs real inbox placement tests.
If you want something accurate and easy to use, try Saleshandy’s Free Spam Checker.
It shows exactly where your email lands and what you can fix right away.
Take a free email spam test and see how your next email performs before it goes live.
Email Spam Checker FAQs
1. Why You Need a Free Email Spam Checker Before Sending Campaigns?
Even small issues can push your email to spam.
A free email spam checker shows how your message looks to mailbox filters.
It helps you fix authentication, content, and blacklist problems before you hit send.
2. How Often Should I Run an Email Spam Test?
I would recommend that you run a spam test before starting your campaigns,
and after completing them.
Testing before helps you fix issues early,
while testing after shows how your deliverability performed over time.
You can also run quick checks whenever you change your domain,
email content, or sending platform.
3. Are Free Email Spam Checkers Accurate?
Yes, the free tools I have shared are accurate enough to flag real issues.
Some of them may not show full inbox placement results,
but they can detect content errors, spam triggers, and setup problems with good reliability.
