assertion failed: imap/mboxevent.c: 743: filled_params(type, event)

[Matthew Schumacher]

I'm trying to use external notifications on 3.2.2 but it doesn't work.   
If I define

event_notifier: external
notify_external: /usr/cyrus/bin/cyrus_notify
event_groups: access
event_extra_params: clientAddress timestamp service

Then the imapd thread dies with this assertion:

Jul 15 18:01:54 snow imaps[28108]: Cannot notify event Login: missing 
parameters: serverAddress clientAddress
Jul 15 18:01:54 snow imaps[28108]: Fatal error: Internal error: 
assertion failed: imap/mboxevent.c: 743: filled_params(type, event)

If I remove event_groups and event_extra_params then notify never calls 
my external script and notify breaks.

If I define "event_groups: access" and omit event_extra_params then I'm 
back to:

Jul 15 18:14:26 snow imaps[28934]: Cannot notify event Login: missing 
parameters: serverAddress
Jul 15 18:14:26 snow imaps[28934]: Fatal error: Internal error: 
assertion failed: imap/mboxevent.c: 743: filled_params(type, event)

Anyone know where this serverAddress is coming from and how to fix it?

schu