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photonconsole.com > the async queue adapter and the SMTP settings that quietly break delivery.
Rails application sending ActionMailer email through an ActiveJob queue and an SMTP relay to the recipient inbox SMPT Relay Service

Ruby on Rails ActionMailer: SMTP Configuration and Delivery Reliability

  • phoconadmin
  • September 26, 2026
  • 0 Comments

ActionMailer is one of the most pleasant parts of Rails. Generate a mailer, write a view, call deliver_later, and email works. Locally, at least. In production the same code can fail without a sound. No exception, no log entry, no failed job. The controller returns a success response, the user waits for a password reset […]

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