How to disable ActionMailer in Development?

sometimes when I am developing, I do not have an internet connection. This results in an error wherever my app is supposed to send an email:

getaddrinfo: nodename nor servname provided, or not known

Is there a simple and quick way where i can change a config value to make ActionMailer just not try to actually send out an email and not throw an error? Maybe s开发者_Go百科omething thats scoped to the development environment. Or some other way I can avoid the error being thrown and my code passing wherever I call the actionmailer deliver?

I'm using Rails 3.1

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It's common practice to just let Rails ignore the mail errors. In your config/environments/development.rb file add, uncomment or modify:

# Don't care if the mailer can't send
config.action_mailer.raise_delivery_errors = false

You can also set this:

config.action_mailer.perform_deliveries = false

See the documentation here http://edgeguides.rubyonrails.org/action_mailer_basics.html#action-mailer-configuration

You can also set the delivery method to :test, but I have not actually tried that

config.action_mailer.delivery_method = :test

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If you want to disable mail deliveries after your rails app has been initialized (while creating sample data, during migrations, etc.):

ActionMailer::Base.perform_deliveries = false