Message sending method, device and system and electronic equipment

The invention discloses a message sending method, device and system and electronic equipment, and the method comprises the steps: reading first routing information from a local cache, the first routing information recording a plurality of message agents and the state of each message agent; acquiring second routing information from the routing service, wherein a plurality of message agents are recorded in the second routing information; and if the message agent recorded in the first routing information is consistent with the message agent recorded in the second routing information, selecting a target message agent to send a message according to the first routing information, and updating the state of the target message agent in the first routing information according to a message sending result. According to the method and the device, the duration for a producer to know the fault of the message agent is remarkably shortened, the success rate of message sending is greatly improved on the basis of not changing t