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Editorial Team
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Asked: 2026-06-13T06:25:06+00:00

ActionMailer::Base.smtp_settings = { :address => smtp.gmail.com, :port => 587, :domain => ???, :user_name =>

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ActionMailer::Base.smtp_settings = {
  :address              => "smtp.gmail.com",
  :port                 => 587,
  :domain               => ???,
  :user_name            => ???,
  :password             => ???,
  :authentication       => "plain",
  :enable_starttls_auto => true
}

I’m trying to use Action Mailer in Rails to send email to users. I don’t quite understand what should go into :domain, :user_name, and :password. Should it be gmail.com, my Gmail username, and my Gmail password?

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1 Answer

  1. Editorial Team

    Here is an example of setting up ActionMailer to use GMAil to send mail:

    config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  :address => "smtp.gmail.com",
  :port => 587,
  :domain => 'gmail.com',
  :user_name => 'my_user_name@gmail.com',
  :password => 'my_gmail_password',
  :authentication => 'plain',
  :enable_start_tts_auto => true
}

    The domain should be “gmail.com” and the username and password should be those of your Google account. To better protect your main GMail account, you should setup a separate GMail account just for sending email.

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