How to Automate Email Verification in Selenium
Blog post from Mailtrap
Selenium WebDriver can automate email verification by logging into a Mailtrap Email Sandbox account, navigating to an inbox, and using Java, JUnit, and browser element locators to confirm that a delivered message contains expected text. The tutorial outlines project prerequisites, including a JDK, Java IDE, Mailtrap Sandbox account, and Gradle dependencies for Selenium, JUnit, and JSON processing, then demonstrates browser setup, implicit waits, authentication, inbox navigation, message searching, and assertion-based test validation. Because reCAPTCHA and other advanced sign-in protections block browser automation, it recommends using the Mailtrap Sandbox API instead when such protection is enabled. The API approach authenticates with an API token and account ID, retrieves inboxes and messages, obtains an email’s HTML path, verifies successful API responses, and can use Selenium to render and inspect the message HTML in a browser. Together, these methods allow developers to verify that test emails are delivered and contain expected content before sending emails to real users.
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