Prerequisites Set-up mailcatcher ( https://mailcatcher.me/ ). Log in as an admin. Visit ‘Site administration’ > ‘Server’ > ‘Outgoing mail configuration’. Set the 'SMTP hosts' field to '127.0.0.1:1025'. Save. Visit ‘Site administration’ > ‘Plugins’ > ‘Manage authentication’. Enable ‘Email-based self-registration'. Set 'Self registration' to 'Email-based self-registration'. Save. Log out. Visit 'http://127.0.0.1:1080/' to view outgoing emails and stay on this page for the remainder of this test. When any of the below instructions mention check your email it means refer to this page. Testing Go to Site administration > Server > Email >Outgoing mail configuration . Confirm that you see the Test outgoing mail configuration section at the bottom of the page. Save the configuration. Follow the Test outgoing mail configuration link at the bottom of the page. Set To email address text field to the address where you want to send the mail test. Press Send a test message button. A notification will show the result of the test. If you are using mailcatcher with the suggested SMTP or a valid outgoing mail configuration: Confirm the notification background is green, so the email was successfully sent. If you are using a wrong SMTP servers configuration: Confirm the notification background is red, so the email couldn't be sent.