The invention relates to a method for classifying V2X messages and to a vehicle arranged to receive V2X messages and using the method to classify the received V2X messages. A method according to the invention for processing a message in a vehicle (100) comprises the steps of: receiving a signal (920) containing the message by means of a first antenna (111) and a second antenna (112); determining a relevance of the message (930) on the basis of signal characteristics and on the basis of navigation information of the vehicle (100); and processing the message with a ranking (940) corresponding to the determined relevance, wherein an attenuation map (300) assigns attenuation values to the vehicle environment on the basis of static objects (210) and dynamic objects (220) section by section. A vehicle according to the invention is arranged to use the relevance-based method for processing a message.