Messaging filter

A messaging filter examines the content of a message to filter out spam, offensive language, or recreational e-mails that lower the productivity of workers. Messaging filters also block messages based on the types of file attachments and the senders of e-mails, as determined by an organization’s policy. Files are excluded based on their file extensions, or the last part of their name, which indicates the file type. The file might be excluded to limit the trafficking of illicit material, stop viruses from entering the network, limit intellectual property breaches, or carry out other such functions intended to increase the security of an organization. File extensions that are typically excluded are MP3 (music files), JPG (graphic files), MPEG (video files), and EXE (typically used for executable files), among others.