Index: source/lobby/XmppClient.cpp
===================================================================
--- source/lobby/XmppClient.cpp
+++ source/lobby/XmppClient.cpp
@@ -866,7 +866,13 @@
 		}
 		if (gq)
 		{
-			if (iq.from().full() == m_xpartamuppId && gq->m_Command == "register" && g_NetServer && !g_NetServer->GetUseSTUN())
+			if (iq.from().full() != m_xpartamuppId)
+			{
+				LOGWARNING("XmppClient: Received game list response from unexpected sender: %s", iq.from().full());
+				return true;
+			}
+
+			if (gq->m_Command == "register" && g_NetServer && !g_NetServer->GetUseSTUN())
 			{
 				if (gq->m_GameList.empty())
 				{
@@ -894,6 +900,12 @@
 		}
 		if (bq)
 		{
+			if (iq.from().full() != m_echelonId)
+			{
+				LOGWARNING("XmppClient: Received board list response from unexpected sender: %s", iq.from().full());
+				return true;
+			}
+
 			if (bq->m_Command == "boardlist")
 			{
 				for (const glooxwrapper::Tag* const& t : m_BoardList)
@@ -921,6 +933,12 @@
 		}
 		if (pq)
 		{
+			if (iq.from().full() != m_echelonId)
+			{
+				LOGWARNING("XmppClient: Received profile response from unexpected sender: %s", iq.from().full());
+				return true;
+			}
+
 			for (const glooxwrapper::Tag* const& t : m_Profile)
 				glooxwrapper::Tag::free(t);
 			m_Profile.clear();