Welcome to the MQTT mailing list and discussion group.

MQTT is a lightweight publish/subscribe messaging protocol originally developed for sensor applications. MQTT is extremely useful and widely adopted in mobile environments due to the low power consumption, simplicity of API, and small bandwidth used. Clients and servers are available in various languages including C, Python, Erlang, C#, Java etc - see for more information about the protocol and the community around it.

This group is intended to bring together discussions of the protocol and different implementations. Other discussion media exist (for example, individual software implementations may have their own project resources) but this group is for discussion of the protocol and MQTT ecosystem as a whole. Off-topic debates, discussion around alternative protocols, etc. do not belong in this group. Thanks.

Initial posts will need to be moderated by a group administrator before they appear to the community.

Showing 1-20 of 913 topics
Mosquitto broker sending message to Azure IoT Hub Mario Barbato 9/19/17
How to remove "damaged" retained topics from mosquitto broker Andreas Link 9/19/17
connect to xamarin mqtt server N M Reddy Arimanda 9/18/17
MQTT to House Control through Raspberry pi Henrik Andersen 9/16/17
Application error 0x0c0150002 while installing mosquitto tanvi ranade 9/16/17
tls on mosquito_pub, works mqtt-spy 9/15/17
Error executing multiple connections to mqtt Andrea Giordano 9/14/17
MQTT error [-8] During running MQTT c++ program for publishing the packet Satyam Mishra 9/13/17
Mqtt connection problem (socket error on client <unknown>, disconnecting.) Daniele Carvalho 9/12/17
IoT in Smart Cities Market - Increasing Demand of Intelligent Cites and Growing Urbanization Albert Morris 9/8/17
Control packet types mqtt reserved Jonathas Alberto 9/5/17
Mosquitto Service issue on Windows Ritesh Paul 9/5/17
SSL x509 certificate 9/1/17
Target Platform does not support mqtt 8/30/17
Difference between new listener vs new instance sridhar krishnamurthy 8/29/17
Username/Password Authentification [Question] Alex 8/29/17
Thousands of concurrent clients possible with Python? Zsolt Ero 8/29/17
mosquitto-broker multiple network interfaces rpi Frank Frank 8/29/17
MQTT cluster anuraag advani 8/20/17
MQTT x509 certificate client renewal 8/16/17
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