fixed another bug

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

Dockerfile

@@ -22,8 +22,9 @@ RUN adduser -D umbrella
 COPY --from=java_build /Umbrella/backend/build/libs/backend.jar /home/umbrella/jar/
 RUN chown -R umbrella /home/umbrella
 ADD https://github.com/plantuml/plantuml/releases/download/v1.2025.10/plantuml-1.2025.10.jar /home/umbrella/plantuml.jar
-USER umbrella
 WORKDIR /home/umbrella
+RUN chmod a+rx plantuml.jar
+USER umbrella
 RUN mkdir .config && ln -s /host/config.json .config/Umbrella.json
 EXPOSE 80
 CMD java -jar jar/backend.jar

messages/src/main/java/de/srsoftware/umbrella/message/Constants.java

@@ -2,6 +2,7 @@
 package de.srsoftware.umbrella.message;
 
 public class Constants {
+	public static final String AUTH = "mail.smtp.auth";
 
 	public static final String CONFIG_DB = "umbrella.modules.message.database";
 	public static final String CONFIG_SMTP_HOST = "umbrella.modules.message.smtp.host";
@@ -10,11 +11,13 @@ public class Constants {
 	public static final String CONFIG_SMTP_USER = "umbrella.modules.message.smtp.user";
 
 	public static final String DEBUG_ADDREESS = "umbrella.modules.message.debug_address";
-	public static final String SMTP_AUTH = "mail.smtp.auth";
-	public static final String SMTP_HOST = "mail.smtp.host";
-	public static final String SMTP_FROM = "mail.smtp.from";
-	public static final String SMTP_PORT = "mail.smtp.port";
-	public static final String SMTP_SSL = "mail.smtp.ssl.enable";
+	public static final String ENVELOPE_FROM = "mail.smtp.from";
+	public static final String FIELD_MESSAGES = "messages";
+	public static final String FIELD_HOST = "host";
+	public static final String FIELD_PORT = "port";
+	public static final String HOST = "mail.smtp.host";
+	public static final String PORT = "mail.smtp.port";
+	public static final String SSL = "mail.smtp.ssl.enable";
 	public static final String SUBMISSION = "submission";
 
 }

messages/src/main/java/de/srsoftware/umbrella/message/MessageSystem.java

@@ -142,11 +142,11 @@ public class MessageSystem implements PostBox {
 	private Session session() {
 		if (session == null){
 			Properties props = new Properties();
-			props.put(SMTP_HOST, host);
-			props.put(SMTP_PORT, port);
-			props.put(SMTP_AUTH, true);
-			props.put(SMTP_SSL, true);
-			props.put(SMTP_FROM,from);
+			props.put(HOST, host);
+			props.put(PORT, port);
+			props.put(AUTH, true);
+			props.put(SSL, true);
+			props.put(ENVELOPE_FROM,from);
 			session = Session.getInstance(props);
 		}
 		return session;