# ri > ActionMailer::DeliveryMethods::ClassMethods

## [ActionMailer::DeliveryMethods::ClassMethods](https://www.chedong.com/phpMan.php/perldoc/ActionMailer%3A%3ADeliveryMethods%3A%3AClassMethods/markdown)

(from /home/chedong/.local/share/rdoc)
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Helpers for creating and wrapping delivery behavior, used by
DeliveryMethods.
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## Instance methods:

  add_delivery_method