SMTP setup, Docker + fix ports

SymphonySMTP/src/main/java/io/github/lumijiez/Main.java

@@ -0,0 +1,11 @@
+package io.github.lumijiez;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+public class Main {
+    public static void main(String[] args) {
+        Logger logger = LogManager.getLogger(Main.class);
+        logger.info("SMTP server started");
+    }
+}