Methods, systems, and computer-readable media are provided. Some embodiments include, after receiving at least a portion of a file at a computing system, obtaining information about the file at a first time. First information is stored in a data structure, the first information comprising information that identifies the file and the information about the file at the first time. Then, information about the file at a second time after the first time is obtained. Second information is stored in a memory of the computing system, the second information comprising information that identifies the file and the information about the file at the second time. It is determined whether the second information matches the first information. In response to determining that the second information matches the first information, the file is sent from the computing system to a predetermined destination. In some embodiments, the file comprises a facsimile communication.