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 1-19 of 526 topics
Order of retained message. Gianluca Finocchiaro 9/2/15
Starting Mosquitto in verbose/debug mode through /etc/init.d/mosquitto GeertVc 8/28/15
MQTT Security Nowa Concordia 8/25/15
Publisher persistence in network failures. Nowa Concordia 8/10/15
Mosquitto in a home automation environment - TLS help? John Connolly 8/10/15
How to create username and password in mqtt mosquitto programatically in C# abhinav sharma 8/10/15
How to make access control of user operations Henry John 8/6/15
Websocket messages Nicolas Jouanin 7/28/15
subscription and publish management Nicolas Jouanin 7/23/15
Question about retain message management Nicolas Jouanin 7/21/15
Unsubscription of subset allowed ? Nicolas Jouanin 7/18/15
Who's running MQTT in production? martin 7/17/15
Building Mosquitto Library Preetam Joshi 7/13/15
Database application Sy 7/12/15
MQTT Used as a protocol to control Drones over radio waves Tim McClure 7/11/15
mosquitto_loop_start() isn't defined in libmosquitto AlTro 6/30/15
Cant send the connect packet data to the broker. user25677 6/24/15
Several packets in QOS protocol flow Nicolas Jouanin 6/20/15
"Getting Started with MQTT" webinar on July 2 Benjamin Cabé 6/16/15
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