In order to improve reliability and performance, all Message Senders must now be used in combination with a Delivery Config. Values that were previously defined directly on the Message Sender must now be specified within a DeliveryConfig that uses one of the following delivery targets:
Mailchimp
MessageSender
The following model changes will be applied to the Message Sender model:
URLhas been removed from the Message Sender modelSharedKeyhas been removed from the Message Sender modelDeliveryConfigIDis now required from the Message Sender modelThe DeliveryConfig target has been renamed to
MailchimpfromMandrill
All existing MessageSenders have been migrated to use this new configuration, no action is needed. If you maintain any automated process that creates Message Senders, you must update those processes accordingly.