Message notification campaigns

Techniques for message notification campaigns are described. In an implementation, a messaging service may process a message received for delivery to a client to determine one or more notifications regarding the message to be sent to the client. The one or more notifications may be designated by way of a notification campaign that is associated with a sender of the message or directly with the message itself The messaging service may parse metadata fields within the message to identify the sender and/or other data sufficient to determine notifications designated to take place regarding the message. A variety of different types of notifications regarding a message may be sent to a client. The messaging service may cause one or more notifications to be sent to the client in conjunction with various resources from a service provider in addition to delivery of the message to the client.