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 21-40 of 841 topics
Re: [mqtt] Abridged summary of - 1 update in 1 topic Amit Ghadge 3/30/17
Unable to make bianry file for Beagle Bone Black with mosquitto header file included. 3/29/17
Does MQTT-1.5.3-2 (UTF-8 encoded string MUST NOT include a null character) apply to payload? Mark M 3/28/17
MQTT 5.0, QUIC and flow control 3/26/17
Android Bluetooth and Mqtt connection port clash on multiple connections Sumeet Pathak 3/23/17
paho client does not respond Alican KAYIKCI 3/20/17
In MQTT is it possible that a publisher application can publish data to certain users/subscribers? sujitha 3/12/17
Multiple Clients using MQTT Gaurav Markan 3/11/17
Fwd: Us congress hearing of maan alsaan Money laundry قضية الكونغجرس لغسيل الأموال للمليادير معن الصانع kareem M 3/10/17
.NET Library for MQTT over websocket. Naresh Maram 3/9/17
Is it possible to get list of users added in ACL file in MQTT broker from MQTT client(publisher)? sujitha 3/9/17
In MQTT is message order preserved? sujitha 3/8/17
paho mqtt C client with TLS Vladimir A 3/8/17
Anybody knows of MQTT-SN simulator which mimics real world devices Amith Patil 3/7/17
mosquitto_publish returns MOSQ_ERR_SUCCESS eventhough MQTT broker is not running sujitha 3/7/17
MQTT on embedded system 3/6/17
paho vs mosquitto for C/C++ client Vladimir A 3/6/17
How to set timout for MQTT Client Connect? sujitha 3/5/17
MQTT - Geofencing Project issues Steve Reeves 3/3/17
error codes of subscribe or publish in paho kushal bhatta 3/2/17
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