A method and apparatus for blocking unwanted messages (spam) in a telecommunications network. Nodes for offering all types of telecommunications services are connected to a centralized anti-spam server. In response to reception of a message request, a node of the network transmits information about the request to the centralized server to obtain permission to transmit the request or an indication that the message should be blocked. Advantageously, a centralized server stores data for all types of network elements thus providing a centralized system for analyzing spam requests from and to all types of network elements.
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