https://github.com/scouter-project/scouter-plugin-server-alert-email/issues/12

Author: nices96

README.md

@@ -19,6 +19,7 @@
 * **_ext\_plugin\_email\_level_** : 수신 레벨(0 : INFO, 1 : WARN, 2 : ERROR, 3 : FATAL) - 기본 값은 0
 * **_ext\_plugin\_email\_smtp_hostname_** : SMTP 서버의 IP 또는 Domain - 기본 값은 smtp.gmail.com
 * **_ext\_plugin\_email\_smtp_port_** : SMTP Port - 기본 값은 587
+* **_ext\_plugin\_email\_smtpauth_enabled_** : SMTP 인증 사용 여부 - 기본 값은 true
 * **_ext\_plugin\_email\_username_** : Email 사용자 계정
 * **_ext\_plugin\_email\_password_** : Email 사용자 비밀번호
 * **_ext\_plugin\_email\_ssl_enabled_** : SSL 사용 여부 - 기본 값은 true
@@ -42,6 +43,7 @@ ext_plugin_email_debug=true
 ext_plugin_email_level=0
 ext_plugin_email_smtp_hostname=smtp.gmail.com
 ext_plugin_email_smtp_port=587
+ext_plugin_email_smtpauth_enabled=true
 ext_plugin_email_username=noreply@scouter.com
 ext_plugin_email_password=password
 ext_plugin_email_ssl_enabled=true

src/scouter/plugin/server/alert/email/EmailPlugin.java

@@ -120,6 +120,7 @@ public void run() {
                             // Get server configurations for email
                             String hostname = conf.getValue("ext_plugin_email_smtp_hostname", "smtp.gmail.com");
                             int port = conf.getInt("ext_plugin_email_smtp_port", 587);
+                            boolean authEnabled = conf.getBoolean("ext_plugin_email_smtpauth_enabled", true);
                             String username = conf.getValue("ext_plugin_email_username");
                             String password = conf.getValue("ext_plugin_email_password");
                             boolean sslEnabled = conf.getBoolean("ext_plugin_email_ssl_enabled", true);
@@ -219,7 +220,9 @@ public void run() {
                                 email.setSmtpPort(port);
                             }
 
-                            email.setAuthenticator(new DefaultAuthenticator(username, password));
+                            if (authEnabled) {
+                                email.setAuthenticator(new DefaultAuthenticator(username, password));
+                            }
                             email.setStartTLSEnabled(tlsEnabled);
                             email.setFrom(from);
                             email.setSubject(subject);