diff --git a/hsarback/src/de/hsadmin/core/qserv/SmtpHelper.java b/hsarback/src/de/hsadmin/core/qserv/SmtpHelper.java
index 2f7db34..94b40b6 100644
--- a/hsarback/src/de/hsadmin/core/qserv/SmtpHelper.java
+++ b/hsarback/src/de/hsadmin/core/qserv/SmtpHelper.java
@@ -25,7 +25,7 @@ public class SmtpHelper {
 			throws HSAdminException {
 		try {
 			SMTPClient client = new SMTPClient();
-			String canonicalHostName = InetAddress.getLocalHost().getHostName();
+			String canonicalHostName = InetAddress.getLocalHost().getCanonicalHostName();
 			String smtpHost = Config.getInstance().getProperty("smtp.host");
 			if (smtpHost == null || smtpHost.trim().isEmpty()) {
 				smtpHost = "localhost";