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Editorial Team
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Asked: 2026-05-13T23:12:57+00:00

Googled for this to no avail. Didn’t find anything in the API either. I

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Googled for this to no avail. Didn’t find anything in the API either. I was expecting some kind of class method or configuration option to set it…

So, rather than calling 

from "my@email.com"

for every method, it could be called automatically.

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1 Answer

  1. Editorial Team

    Rails 3

    config/environments/development.rb:

    ActionMailer::Base.default :from => 'default@development-server.com'

    config/environments/production.rb:

    ActionMailer::Base.default :from => 'default@production-server.com'

    You can also set this per mailer:

    class MyMailer < ActionMailer::Base
  default :from => 'default@myapp.com'
end

    Rails 2

    This is not supported by default. But you can achieve this functionality by using the action_mailer_callbacks plugin. Essentially this plugin allows you to add before and after filters for the deliver method.

    class FooMailer < ActionMailer::Base
  before_deliver do |mail|
    mail.from = "abc@xyz.com"
  end

end

    Reference:

    1) Article discussing the plugin.

    OR

    You can monkey patch the from method of ActionMailer::Base.

    Add the code below to your config\initializers\mail.rb

    class ActionMailer::Base
  class_inheritable_hash :default
  def from_with_default(input=nil)
    return from_without_default(input) || default[:from] if input.nil?
    from_without_default(input)
  end
  alias_method_chain :from, :default
end

    Now you can configure your default value as follows:

    config/environments/development.rb:

    ActionMailer::Base.default = {:from => 'default@development-server.com'}

    config/environments/production.rb:

    ActionMailer::Base.default = {:from => 'default@production-server.com'}

    You can also set this per mailer:

    class MyMailer < ActionMailer::Base
  self.default = {:from => 'default@myapp.com'}
end
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