Custom SNMP Traps

Hello, i did add custom alertname as you did with "_serverx" suffix but this doesn't work when a pool is going down (it did work when using manual logger command) It seems that only exact existing alertname works. Is that correct ? We do not have any access to modify alert code or alertname, as far as i understand. We can add a regex type matching pattern to the alertname definition to catch only event we want and trigger the custom action desired; and send the oid we want. thanks a lot for your attention guys.