No matching token for number_type [BIG_INTEGER]

Nailed it done to documents like this:

 {"_index":"popserv-2016.05.25","_type":"popserv","_id":"AVTnEhpwWvfOjJPMxwwj","_score":1.2420747,
  "_source":
    {"message":"<redacted>","@timestamp":"2016-05-25T08:39:57.292Z","tags":[],
     "type":"popserv","host":"<redacted>","lglvl":"Note","event":"PopConnMade","user":<redacted>,
     "mbox":9xxxxxxxxxxxxxxxxxxx,
     "cmd":"<redacted>","fromhost":"<redacted ip>",
     "geoip":{"country_name":"<redacted>","continent_code":"EU","city_name":"<redacted>","location":[xx.520100000000014,yy.39019999999999],"ip":"<redact ip>"},
     "geoasn":{"number":"<redacted>","asn":"<redacted>"}
    }
 }

And have this template for the index:

{
  "template":"popserv-*",
  "settings":{"index":{"number_of_shards":1,"numver_replicas":1,"refresh_interval":"5s"}},
  "mappings":{
    "_default_":{
        "dynamic_templates":[{
            "template1":{
               "mapping":{"ignore_above":64,"index":"not_analyzed","omit_norms":"true","type":"{dynamic_type}","doc_values":true},
               "match":"*"}
        }],
        "_all":{"norms":{"enabled":false},"enabled":true},
        "properties":{
           "@timestamp":{"type":"date"},
           "host":{"index":"not_analyzed","omit_norms":"true","type":"string"},
           "user":{"index":"not_analyzed","omit_norms":"true","type":"string"},
           "mbox":{"index":"not_analyzed","omit_norms":"true","type":"string"},
           "event":{"index":"not_analyzed","omit_norms":"true","type":"string"},
           "type":{"index":"not_analyzed","omit_norms":"true","type":"string"},
           "geoip":{"properties":{"location":{"type":"geo_point"},"ip":{"type":"ip","omit_norms":true,"index":"not_analyzed"}}},
           "fromhost":{"index":"not_analyzed","omit_norms":"true","type":"ip"}
        }
     }
  },
  "aliases":{}
}

My concern are that the mbox field isn't made a string as template says since it it's value isn't quoted '"' like other string fields and that 20 digit numbers cause this BIG_INTEGER issue.

Am I right it's not a string when not returned '"' quoted and if so, how can I force this field to be made a string if not by my template?

Don't suppose query parameter 'lenient' cant help if possible to use from kibana either?