Rails ActionMailer with multiple SMTP servers

Admin 1
Viewed 19401

I have a need to use two different smtp servers in a Rails application. It appears that the way ActionMailer is constructed, it is not possible to have different smtp_settings for a subclass. I could reload the smtp settings for each mailer class whenever a message is being sent, but that messes up the ExceptionNotifier plugin which is outside my control (unless I mess with it too). Does anyone have a solution/plugin for something like this?

Ideally I would like to have

class UserMailer < ActionMailer::Base; end

and then set in environment.rb

ActionMailer::Base.smtp_settings = standard_smtp_settings
UserMailer.smtp_settings = user_smtp_settings

Thus, most of my mailers including ExceptionNotifier would pickup the default settings, but the UserMailer would use a paid relay service.

actionmailer smtp ruby-on-rails
11 Answers
user_4432970

https://github.com/AnthonyCaliendo/action_mailer_callbacks

I found this plugin helped solve the problem for me pretty easily (as in < 5 mins). I simply change the @@smtp_settings for a particular mailer in the before_deliver and then change it back to the defaults in the after_deliver. Using this approach, I only have to add the callbacks to mailers that need @@smtp_settings different than the default.

class CustomMailer < ActionMailer::Base

  before_deliver do |mail|
    self.smtp_settings = custom_settings
  end

  after_deliver do |mail|
    self.smtp_settings = default_settings
  end

  def some_message
    subject "blah"
    recipients "blah@blah.com"
    from "ruby.ninja@ninjaness.com"
    body "You can haz Ninja rb skillz!"
    attachment some_doc
  end

end
user_2602790
Related