Abstract: A system in which a message from a server is transmitted to a recipient device, the message including an image reference that identifies the location of an image. A request is received for the image file from the recipient device. The image file is transmitted to the recipient device and a start time of the transmitting is noted. Upon detecting that the image file has ceased being transmitted, an end time of the transmission is noted. The end time and start time are compared to make a determination of whether the message was read.

Abstract: A system for managing search engine campaigns may include storing advertising campaign data associated with a customer account and generating a synchronization thread for an advertising platform selected from a plurality of advertising platforms. The system may synchronize the advertising campaign data with the advertising platform by selecting a proxy class associated with the advertising platform; requesting from the advertising platform, via the proxy class, a set of campaigns that are associated with the customer account and the advertising platform; receiving, from the advertising platform, the set of campaigns associated with the customer account; and updating the advertising campaign data stored in the database based on the set of campaigns received from the advertising platform and a set of campaigns stored in the advertising campaign data.

Abstract: A system in which a message from a server is transmitted to a recipient device, the message including an image reference that identifies the location of an image. A request is received for the image file from the recipient device. The image file is transmitted to the recipient device and a start time of the transmitting is noted. Upon detecting that the image file has ceased being transmitted, an end time of the transmission is noted. The end time and start time are compared to make a determination of whether the message was read.