We needed a cheap, simple and efficient way to quickly test the quality of our own newsletters.
We simply built on our own tool. Now we're sharing it for free via our web-interface and enable you to include our tests in your own app and whitelist our service by creating an account.
We're geeky email software engineers.We generate a random email address each time you access our port.
You should send a message from your favourite Newsletter/email software to this email address.
Once done, click on the Check your score button and as soon as we receive your message, our snail will stop to give you your spam score.
Mail-tester will analyze your message, your mail server, your sending IP... and show you a detailed report of what's configured properly and what's not.
Your result will be accessible for 7 days with our free version or 30 days if you created an account and used your own prefix.
If you send a new message to the same testing address, your previous test will be immediately deleted to be replaced by the new one.It's a widely used spam filter. It's open source, free, pretty awesome and they have a website too.
We have a vanilla install. In other words, it's an out of the box default installation. We reversed the score so a positive score is a good score and a negative one is bad.
Do note that there are plenty of other spam filters out there.You can use checkyourmail.ru provided that