Using multiple SMTP accounts with Rails & ActionMailer

I have a need to send mail from more than 1 SMTP account in Rails and
I stumbled upon this post

http://broadcast.oreilly.com/2009/03/using-multiple-smtp-accounts-w.html

The Author wasn’t thrilled with his solution and I’m hoping this forum
can come up with something a little cleaner.

I took a different approach (that I’m not in love with either).

I created and email config class that sets the smtp settings for a
specific configuration, does a yield call (to deliver the mail) and
then replaces the base settings. This ensures that code that is
happy with the default settings will use them without needing a code
change.

====== email_config.rb ============
class EmailConfig
@@the_map = {}
def self.set_config(name, mapping)
@@the_map[:base] = ActionMailer::Base.smtp_settings if @@the_map
[:base].blank?
@@the_map[name] = mapping
end
def self.run_with_config(name)
ActionMailer::Base.smtp_settings = @@the_map[name] if @@the_map
[name]
begin
RAILS_DEFAULT_LOGGER.debug(“EMAIL send as #
{ActionMailer::Base.smtp_settings[:user_name]}”)
yield
ensure
ActionMailer::Base.smtp_settings = @@the_map[:base] if @@the_map
[:base]
RAILS_DEFAULT_LOGGER.debug(“EMAIL sent now configured for #
{ActionMailer::Base.smtp_settings[:user_name]}”)
end
end
end

Now in an after_initialize block in production.rb I can set the
following

EmailConfig.set_config(:exception, {
:address => ‘smtp.gmail.com’,
:enable_starttls_auto => ‘true’,
:port => 587,
:domain => ‘mydomain.com’,
:authentication => :login,
:user_name => ‘[email protected]’,
:password => ‘passwd’
})

In my case I wanted emails from the exception notification plugin to
goto a different email address. I needed to modify the
deliver_exception_notification call to the following

EmailConfig.run_with_config(:exception){
ExceptionNotifier.deliver_exception_notification(exception,
self,
request, data)}

It works fine but I’m wondering if there is a cleaner way to do this.
Thoughts?

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