SMTP (or Simple Mail Transfer Protocol) was designed for transferring emails from one mail server to another. As it is critical for email delivery, it’s essential to verify that it runs properly. No matter which types of letters you send (bulk, marketing, or transactional emails), none of them will reach their destination if your “postman” is out of order. The SMTP Debug Tool is a quick and easy check-up of your server’s health!
Just fill in the required parameters and start your session to see how it all works. As a result, you’ll see logs showing how the email transfer went and which errors had occurred, if any. Now you know if everything has gone well or something should be fixed to make your mailings run smoothly.
Unregistered users are limited to 10 test sessions per hour, while registered users can have up to 30 sessions per hour.