When I testing my mail alert using watcher it is showing an error that mail send failed.
In my cluster log file I saw below given line. Can anyoone help.
][ERROR][o.e.x.w.a.e.ExecutableEmailAction] [elk-master] failed to execute action [inlined/email_1]
javax.mail.MessagingException: failed to send email with subject [Watch [filebeat] has exceeded the threshold] via account [gmail_account]