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 978 topics
Using MQTT with expensive data plans (infrequent publishing) Jimmie 4:44 AM
Huge IOT Project - Is MQTT right choice? Gourav Goyal 3/17/18
How can i connect MQTT in my webpage? 3/14/18
Does MQTT maintains a queue internally for each topic Nithin B 3/13/18
MQTT with QUIC Vasudev Patel 3/7/18
Subscribing to topics Ulf Holt 3/5/18
How to check the size of the message received from the MQTT broker? user2301 3/1/18
[Paho python] How to set Key store and Trust store with Paho python ? Seung Yul Baek 2/22/18
character,Colon Problem sagar khamkar 2/19/18
Multiple paho publication issues Allen Jakpa 2/19/18
Mosquito vs wolfMQTT vs Paho C vasu 2/16/18
problem Ekrem Gülcüoğlu 2/16/18
Important point for mqtt Omid Aghakhani 2/15/18
Mosquitto message persistence in broker level karthigai muthu 2/15/18
MQTT performance evaluation help Vasudev Patel 2/9/18
MQTT PoP Token based authentication - IETF draft and prototype Cigdem Sengul 2/6/18
Topic for object with both On/Off and Open/Close states Chad Smith 2/4/18
[Errno 32] Broken pipe error - RPi, on file publish Bruce Emsworth 2/4/18
Version 5 client availability? Thomas 2/1/18
Difference between different mqtt workloads Harut Martirosyan 1/26/18
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