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 619 topics
What happens if there are no subscribers Roger Clark 2/10/16
Looking for feedback on an explanation of MQTT Margaret Rouse 2/10/16
MQTT packet fragmentation Paridhika Kayal 2/8/16
Echo Jeff R. Allen 2/1/16
้how to set authencation username and password in broker? Narisa Korsung 1/27/16
Moquette internalPublish not consumed by embedded handlers Jochen 1/25/16
mycustom library and pubsubclient call back Waqas Ahmed 1/23/16
Auto Discovery of MQTT Client Paho devices, topics and subscribe ashok athukuri 1/22/16
Securing public MQTT broker Matthias Böhmer 1/21/16
Mqtt Paho C Library iOS: Occuring connection lost frequently. User 1/21/16
new mqtt web interface Sebastian Raff 1/21/16
MQTT link list Sebastian Raff 1/17/16
Connect AWS IoT in iOS application in swift language Sandeep Paithankar 1/15/16
Request for MQTT functionality testing tool brijesh singh 1/14/16
Fwd: Us congress hearing of maan alsaan Money laundry قضية الكونغجرس لغسيل الأموال للمليادير معن الصانع sady assad 1/14/16
add user&password Alexander Muller 1/12/16
Re: [mqtt] ACL not beeing applied? Restart needed is a weakness? Roger Light 1/11/16
Mosquitto unauthenticated access for localhost? Glyn Hudson 1/7/16
Auto reloading of CRL Kumaresh Dhotrad 1/7/16
building with websockets on a mac using homebrew Michael Laing 1/3/16
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