Just had this happen again. Updated a server, it adds:
externnotify=/usr/sbin/fwconsole voicemail
And causes the system to send thousands of emails at once out to users. For old voicemails. It basically locks up the server because it spawns hundreds of php processes like this:
asterisk 2746 0.1 1.2 507860 22608 ? D 13:27 0:00 php /usr/sbin/fwconsole voicemail 121@default 17 8 0
Took me 45 mins to login and kill -9 pidof php
and then edit the voicemail.com and remove the line.
EDIT: Okay, found it, it’s the update to the voicemail module:
**15.0.18.41:** FREEI-1520 External notify field not being populated automatically in Voicemail admin