Help writing Watcher

Elastic Stack Elasticsearch
6

Thank you ! Now it's trying to send the mail, but fails to connect:

[2018-02-14T16:24:41,737][ERROR][o.e.x.w.a.e.ExecutableEmailAction] [in5oHa7] failed to execute action [j/email_admin]
javax.mail.MessagingException: failed to send email with subject [Field sev contains 1 !] via account [exchange_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-6.2.0.jar:6.2.0]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService.executeInner(ExecutionService.java:492) ~[x-pack-watcher-6.2.0.jar:6.2.0]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService.execute(ExecutionService.java:322) ~[x-pack-watcher-6.2.0.jar:6.2.0]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService.lambda$executeAsync$7(ExecutionService.java:426) ~[x-pack-watcher-6.2.0.jar:6.2.0]
        at org.elasticsearch.xpack.watcher.execution.ExecutionService$WatchExecutionTask.run(ExecutionService.java:580) [x-pack-watcher-6.2.0.jar:6.2.0]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:566) [elasticsearch-6.2.0.jar:6.2.0]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_161]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_161]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_161]
Caused by: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: mx1.orditech.be, 587; timeout 120000
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2118) ~[?:?]
        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$2(Account.java:166) ~[?:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_161]
        at org.elasticsearch.xpack.watcher.notification.email.Account.executeConnect(Account.java:165) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.Account.send(Account.java:124) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.EmailService.send(EmailService.java:110) ~[?:?]
        ... 11 more
Caused by: java.net.ConnectException: Connection refused: connect
        at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[?:1.8.0_161]
        at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) ~[?:1.8.0_161]
        at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[?:1.8.0_161]
        at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ~[?:1.8.0_161]
        at java.net.AbstractPlainSocketImpl.connect(Unknown Source) ~[?:1.8.0_161]
        at java.net.PlainSocketImpl.connect(Unknown Source) ~[?:1.8.0_161]
        at java.net.SocksSocketImpl.connect(Unknown Source) ~[?:1.8.0_161]
        at java.net.Socket.connect(Unknown Source) ~[?:1.8.0_161]
        at com.sun.mail.util.WriteTimeoutSocket.connect(WriteTimeoutSocket.java:113) ~[?:?]
        at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:329) ~[?:?]
        at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:238) ~[?:?]
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2084) ~[?:?]
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:712) ~[?:?]
        at javax.mail.Service.connect(Service.java:366) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.Account.lambda$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) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.Account.send(Account.java:124) ~[?:?]
        at org.elasticsearch.xpack.watcher.notification.email.EmailService.send(EmailService.java:110) ~[?:?]
        ... 11 more

conf file:

xpack.notification.email.account:
    exchange_account:
        profile: outlook
        email_defaults:
            from: adrien.lechantre@orditech.be
        smtp:
            auth: true
            starttls.enable: true
            host: mx1.orditech.be
            port: 587
            user: adrien.lechantre@orditech.be
            password: <mypassword>

I think my conf file is correct, or maybe I'm missing something .. :confused: