I have a zabbix server that works pretty well all in all. One problem I've been facing is that sometimes it sends 2 or 3 dozen messages for a single trigger's outage. The most recent example of this was a trigger based on vfs.fs.size (low free space on { /,/var,/usr }) on a server that doesn't split out these directories to different partitions. Is there a way to force email notifications to be at least X minutes apart (ex. 5 minutes between emails for successive failures on the same trigger)?