Email spam checker for enhanced sender reputation

Prevent your emails going to spam and improve email deliverability rates with the built-in Mailtrap spam score checker.

Use Mailtrap email spam checker

To check the spam score

Identify the level of spam with Mailtrap in-built spam analysis. Check the email spam score in our spam report.

To run in-depth spam test

Get a detailed list of spam points and the HTML spam rule they go against. Check elaborate descriptions for each point.

To improve email deliverability

Make sure your email messages land in recipients’ inboxes in seconds and avoid email spam filters safely.

To check domain blacklist

Inspect if your IP address or sending domain have been blacklisted by major public blacklists such as PSBL, LASHBACK etc.

To scan email content

Examine email subject lines, content, attachments, and remove any malicious links in your emails before sending.

Trusted by 150,000+ monthly active users

Mailtrap spam test: send emails with confidence

  • All DNS records provided

    Mailtrap provides and validates all essential DNS records -SPF, DKIM, DMARC – at registration. This improves domain and IP reputation.

  • Major mail blacklists scanned

    Confirm that your SpamAssassin score is minimized. Scan major blacklists to check if your IP is clean. 

  • Email spam triggers removed

    Identify and remove all spam words that look unnatural, compromised, or at least suspicious. Get detailed info with Mailtrap spam analysis. 

From our #BestClientsEver

Joshua Anderton

Just signed up for @Mailtrap and I’m loving it. So easy to set up. Provides so much peace of mind. Ahh just love it.
7:38 PM – Jan 13, 2021


After all these years of web development, how have I only JUST started using @Mailtrap. I had heard about it, but never got round to using it. An awesome way of testing emails.
1:25 PM – Nov 07, 2020

Alessandro Rodi

I love @Mailtrap. It removes all the asshole of configuring email servers in test environments. Great service! Is totally worth your money!
1:15 PM – Oct 20, 2020

Mr. Glass

Shout out to @Mailtrap, hands down the best way to handle mail sending in local/test environments.
11:43 PM – May 21, 2020

Rado Georgiev 

One thing we started using recently is @Mailtrap for our dev & staging environments. We were previously either turning email sending entirely off for staging or running SES + whitelist. Turns out, having a fake SMTP mailbox is great and you can test better with it.
1:32 PM – Jan 06, 2021

Doug Black Jr

Can we all agree @Mailtrap is a gift to developers everywhere? It just works SO easily out of the box!!!!
9:45 PM – Aug 11, 2020

Get more out of Mailtrap Email Platform

HTML Checker

Validate the HTML/CSS rules included in your emails template. Gauge the support across popular clients – on web, mobile, and desktop.

Read More

Testing API

Automate email testing with a flexible and well-documented API. Save time and be the first to know when something goes wrong.

Read More

QA Automation

Build automated tests of your email sequences and include them in your testing suite. Verify each component of a message with Mailtrap API.

Read More