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In my latest blog post I described shortly how one can configure mail in Spring Boot application . To inject properties into the configuration I used Spring’s @Value annotation. But Spring Boot provides an alternative method of working with properties that allows strongly typed beans to govern and validate the configuration of your application. In this post I will demonstrate how to utilize @ConfigurationProperties while configuring the application.

Whilst building a Spring Boot application you may encounter a need of adding a mail configuration. Actually, configuring the mail in Spring Boot does not differ much from configuring it in Spring Bootless application. But how to test that mail configuration and submission is working fine? Let’s have a look.