Could you start /opt/fmms/fmms_sender_ui.py from the terminal and attach the output after trying to send a message in a PM to me? This (usually) means that you are not allowed to use this MMSC - most likely wrong settings or not MMS-enabled account. Just to be sure, please attach the output after running /opt/fmms/fmms_sender_ui.py in a PM to me and I'll have a closer look at the error message Thanks everyone for testing! I've mailed the bugzilla guys asking for a proper bugzilla, so hopefully we can use that soon(tm)