When using the exposed zabbix_sender service to post information, the server doesn't respond correctly. It should mark the response as a failure but it doesn't. The following examples are for posting to an 'item' of type zabbix_trapper. They are not pretty printed for space reasons.

#1##Missing host in request##You can see that the response is success, although Total is still 0
{"request":"sender data","data":[

]}

#2##Missing item key in request##Again, response is success but Total is 0
{"request":"sender data","data":[

]}

#3##Missing item value##Again, response is success but Total is 0
{"request":"sender data","data":[

]}

#4##Incorrect hostname##Response is still success, although here, it correctly says Failed 1
{"request":"sender data","data":[

]}

#5##Incorrect item key##Response is still success, although here, it correctly says Failed 1
{"request":"sender data","data":[

]}