method

headers

v4.0.2 - Show latest stable - Class: ActionMailer::Base

headers(args = nil)

public

Allows you to pass random and unusual headers to the new Mail::Message object which will add them to itself.

headers['X-Special-Domain-Specific-Header'] = "SecretValue"

You can also pass a hash into headers of header field names and values, which will then be set on the Mail::Message object:

headers 'X-Special-Domain-Specific-Header' => "SecretValue",
        'In-Reply-To' => incoming.message_id

The resulting Mail::Message will have the following in its header:

X-Special-Domain-Specific-Header: SecretValue

# File actionmailer/lib/action_mailer/base.rb, line 533
    def headers(args = nil)
      if args
        @_message.headers(args)
      else
        @_message
      end
    end

headers

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