Elasticsearch watcher cannot to connect smtp host

Elastic Stack Elasticsearch
1

i am using es 6.2.3 and i have configured watcher ,set up email configuration in elasticsearch.yml

xpack.notification.email:
 default_account: smtp_account
 account:
   smtp_account:
     profile: standard
     smtp:
       auth: true
       starttls.enable: true
       host: smtp.163.com
       port: 587
       user: xx@163.com
       password: xx

watcher configuration

{
  "trigger": {
    "schedule": {
      "interval": "1m"
    }
  },
  "input": {
    "search": {
      "request": {
        "search_type": "query_then_fetch",
        "indices": [
          "*"
        ],
        "types": [],
        "body": {
          "size": 0,
          "query": {
            "bool": {
              "must": [
                {
                  "match": {
                    "level": {
                      "query": "error"
                    }
                  }
                },
                {
                  "range": {
                    "@timestamp": {
                      "gte": "now-1m"
                    }
                  }
                }
              ]
            }
          }
        }
      }
    }
  },
  "condition": {
    "compare": {
      "ctx.payload.hits.total": {
        "gte": 3
      }
    }
  },
  "actions": {
    "send_email": {
      "email": {
        "profile": "outlook",
        "to": [
          "xx@outlook.com"
        ],
        "subject": "Watcher Notification",
        "body": {
          "text": " error logs found"
        }
      }
    }
  }
}

the error log

javax.mail.MessagingException: failed to send email with subject [Watcher Notification] via account [smtp_account]
        at org.elasticsearch.xpack.watcher.notification.email.EmailService.send(EmailService.java:112) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.EmailService.send(EmailService.java:104) ~[?:?]
        at org.elasticsearch.xpack.watcher.actions.email.ExecutableEmailAction.execute(ExecutableEmailAction.java:84) ~[?:?]
        at org.elasticsearch.xpack.core.watcher.actions.ActionWrapper.execute(ActionWrapper.java:156) ~[x-pack-core-6.2.3.jar:6.2.3]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService.executeInner(ExecutionService.java:492) ~[x-pack-watcher-6.2.3.jar:6.2.3]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService.execute(ExecutionService.java:322) ~[x-pack-watcher-6.2.3.jar:6.2.3]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService.lambda$executeAsync$7(ExecutionService.java:426) ~[x-pack-watcher-6.2.3.jar:6.2.3]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService$WatchExecutionTask.run(ExecutionService.java:580) [x-pack-watcher-6.2.3.jar:6.2.3]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:573) [elasticsearch-6.2.3.jar:6.2.3]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_161]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_161]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: smtp.163.com, port: 587, response: -1
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2106) ~[?:?]
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:712) ~[?:?]
        at javax.mail.Service.connect(Service.java:366) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.Account.lambda$executeConnect$2(Account.java:166) ~[?:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_161]
        at org.elasticsearch.xpack.watcher.notification.email.Account.executeConnect(Account.java:165) ~[?:?]

please help me
Thanks

2

i try gmail and outlook email , still do not work.
but i use telnet command ,it can connected , i am so confused

3

the exception states that there is an issue connecting to the endpoint. Can you share the telnet session (without user accounts/passwords) that shows you how send an email? Maybe the other side is dropping the connection after it has been created out of whatever reason.

4

i just use telnet commend to test the port ,i know it is stupid but i do not know what other ways available

telnet smtp.gmail.com 587
5

telnet just checks if the TCP connection is working, but does not guarantee you that sending an email actually works. You should check for that as well!

--Alex

6

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