Enhancing Devise Email Reliability with Mailsnag and ActiveJob

2023/07/30

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The article discusses how to enhance the reliability of Devise, a gem for Ruby on Rails that simplifies user authentication, when sending emails. The author shares their experience of using Mailsnag, a tool that helps catch potential email delivery issues, to identify and resolve edge cases that could have caused frustration for users. They guide readers through the process of integrating Mailsnag with Devise and configuring SMTP for ActionMailer. The article highlights the importance of simulating errors during setup to reveal any potential issues with the SMTP integration. To handle SMTP outages more efficiently, the author recommends implementing a solution using ActiveJob to deliver emails asynchronously in the background. This ensures smooth retries and improves the overall reliability of the application. Developers looking to enhance the reliability of their email delivery with Devise will find this article helpful.