Dear,
We are using zabbix 5.0 LTS.
We have deleted some hosts that no need to monitor anymore, but we are still receiving email notification for the problem created by these hosts.
The problem has been resolved long time before, but we still get the notification everyday for this.
What I have tried.
1. Disable the related trigger , - not working
2. Recreate the host with the same name and IP , and then try to unlink and clear the template used for ICMP - still not working

Anybody can give some suggestion where should I look for this problem?
We are using zabbix 5.0 LTS.
We have deleted some hosts that no need to monitor anymore, but we are still receiving email notification for the problem created by these hosts.
The problem has been resolved long time before, but we still get the notification everyday for this.
What I have tried.
1. Disable the related trigger , - not working
2. Recreate the host with the same name and IP , and then try to unlink and clear the template used for ICMP - still not working
Anybody can give some suggestion where should I look for this problem?
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