Bugs / Support
Mosquitto bug information can be found on Launchpad.
There is a user mailing list for mosquitto on launchpad which you can subscribe to from the mosquitto-users page on launchpad.
If you’re familiar with irc, feel free to come join us on the freenode network in channel #mqtt.
Any other questions/suggestions should be directed to Roger Light <roger_atchoo_org>. Replace the _ with @ and . respectively, or on twitter as ralight.
If you’re interested in the development side of mosquitto, please join in on the mosquitto-devel mailing list.