Erro de plug-in de saída-http do Logstash 500 ao tentar enviar para o webhook de folga

Navegue suas respostas
3

Estou executando um contêiner docker com uma pilha ELK. Tudo funciona muito bem. Gostaria de utilizar o plug-in link .

Eu instalo o plugin: 

root@elk:/# /opt/logstash/bin/plugin install logstash-output-http
Validating logstash-output-http
Installing logstash-output-http
Installation successful

/etc/logstash/conf.d/logstash.conf main arquivo de configuração do logstash: 

input {
  beats {
   port => 5044
   type => "logs"
  }
}
filter {
  grok {
    match => { "message" => "\"name\":\"Error\""}
    add_tag => ["error"]
  }
}
output {
  elasticsearch {
    hosts => "localhost:9200"
    sniffing => true
    manage_template => false
    index => "%{[@metadata][beat]}-%{+YYYY.MM.dd}"
    document_type => "%{[@metadata][type]}"
  }
  if "error" in [tags] {
    http {
      http_method => "post"
      url => "https://hooks.slack.com/services/<MY_ID>"
      format => "json"
      content_type => "application/json"
      message => "{\"text\": \"dis is workinz\"}"
    }
  }
}

Eu também tentei alterar o formato no http: 

...
format => "message"
...

A configuração também é testada e é válida: 

root@elk:/# /opt/logstash/bin/logstash --configtest -f /etc/logstash/conf.d/logstash.conf 
Configuration OK

Ambos resultam em não funcionar. Eu verifiquei novamente se o webhook está trabalhando com um teste (do contêiner do logstash): 

curl -H "Content-Type: application/json" -X POST -d '{"text":"testing"}' https://hooks.slack.com/services/<MY_ID>

Eu sei que as tags estão sendo aplicadas corretamente, verificadas no Kibana. Além disso, a cláusula if também está funcionando, já que testei colocando elasticsearch dentro dela e, de fato, só enviei logs com as tags error adicionadas para elasticsearch.

Por fim, a mensagem de erro sagrada de /var/log/logstash/logstah.log : 

{: timestamp => "2016-02-25T15:55:35.926000+0000", 
: message => "[HTTP Output Failure] Encountered non-200 HTTP code 200", 
: response_code => 500, : url => "https://hooks.slack.com/services/<YES_THE_ACTUAL_WEBHOOK_ID_WAS_HERE>", 
: event => # < LogStash::Event: 0x408e202@ metadata = {
        "beat" => "filebeat", "type" => "log"
    }, @accessors = # < LogStash::Util::Accessors: 0x5dc514d7@ store = {
        "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
            "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
        }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
    }, @lut = {
        "@timestamp" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "@timestamp"], "beat" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "beat"], "count" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "count"], "fields" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "fields"], "input_type" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "input_type"], "offset" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "offset"], "source" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "source"], "type" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "type"], "[beat][hostname]" => [{
            "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
        }, "hostname"], "host" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "host"], "tags" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "tags"], "message" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "message"], "[tags]" => [{
            "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
                "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
            }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
        }, "tags"]
    } > , @data = {
        "message" => "{\"name\":\"myapp\",\"hostname\":\"sensu-node-dev\",\"pid\":749,\"level\":50,\"err\":{\"message\":\"Cannot find module 'lol'\",\"name\":\"Error\",\"stack\":\"Error: Cannot find module 'lol'\n    at Function.Module._resolveFilename (module.js:339:15)\n    at Function.Module._load (module.js:290:25)\n    at Module.require (module.js:367:17)\n    at require (internal/module.js:16:19)\n    at Object.<anonymous> (/srv/www/dev.site/app.js:27:6)\n    at next (native)\n    at Object.<anonymous> (/srv/www/dev.site/node_modules/koa-compose/index.js:29:5)\n    at next (native)\n    at onFulfilled (/srv/www/dev.site/node_modules/co/index.js:65:19)\n    at /srv/www/dev.site/node_modules/co/index.js:54:5\",\"code\":\"MODULE_NOT_FOUND\"},\"msg\":\"Cannot find module 'lol'\",\"time\":\"2016-02-25T15:55:25.509Z\",\"v\":0}", "@version" => "1", "@timestamp" => "2016-02-25T15:55:34.004Z", "beat" => {
            "hostname" => "sensu-node-dev", "name" => "sensu-node-dev"
        }, "count" => 1, "fields" => nil, "input_type" => "log", "offset" => 29352, "source" => "/var/log/bunyan/myapp-info.log", "type" => "log", "host" => "sensu-node-dev", "tags" => ["beats_input_codec_plain_applied", "error"]
    }, @metadata_accessors = # < LogStash::Util::Accessors: 0x22cd112d@ store = {
        "beat" => "filebeat", "type" => "log"
    }, @lut = {
        "[type]" => [{
            "beat" => "filebeat", "type" => "log"
        }, "type"], "[beat]" => [{
            "beat" => "filebeat", "type" => "log"
        }, "beat"]
    } > , @cancelled = false > , : level => : error
}

Como você pode ver, ele indica response_code => 500 erro interno. Eu recebo o mesmo erro com format => "json" e format => "message" .

Suponho que tenha algo a ver com minha configuração (obviamente).

    
por Karl Morrison 25.02.2016 / 17:07

1 resposta

3

Aparentemente, o logstash tem problemas com aspas duplas, estou surpreso (e desapontado). Aqui está o código de trabalho: 

  if "error" in [tags] {
    http {
      http_method => "post"
      url => "https://hooks.slack.com/services/<MY_ID>"
      format => "message"
      message => '{"text":"hello"}'
    }
  }
    
por 26.02.2016 / 18:35

Tags

Os nomes de host e os IPs da rede local devem ser removidos dos cabeçalhos de correio? Ter o nome do host e o FQDN no certificado SSL no IIS