2016.08.10 14:57:44 org.jivesoftware.openfire.net.DNSUtil - Can't process DNS lookup!
javax.naming.OperationNotSupportedException: DNS service refused [response code 5]; remaining name '_jabber._tcp.proxy.eu.jabber.org'
        at com.sun.jndi.dns.DnsClient.checkResponseCode(DnsClient.java:662)
        at com.sun.jndi.dns.DnsClient.isMatchResponse(DnsClient.java:577)
        at com.sun.jndi.dns.DnsClient.doUdpQuery(DnsClient.java:426)
        at com.sun.jndi.dns.DnsClient.query(DnsClient.java:211)
        at com.sun.jndi.dns.Resolver.query(Resolver.java:81)
        at com.sun.jndi.dns.DnsContext.c_getAttributes(DnsContext.java:430)
        at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getAttributes(ComponentDirContext.java:231)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:139)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:127)
        at javax.naming.directory.InitialDirContext.getAttributes(InitialDirContext.java:142)
        at org.jivesoftware.openfire.net.DNSUtil.srvLookup(DNSUtil.java:167)
        at org.jivesoftware.openfire.net.DNSUtil.resolveXMPPDomain(DNSUtil.java:100)
        at org.jivesoftware.openfire.net.SocketUtil.createSocketToXmppDomain(SocketUtil.java:43)
        at org.jivesoftware.openfire.session.LocalOutgoingServerSession.createOutgoingSession(LocalOutgoingServerSession.java:253)
        at org.jivesoftware.openfire.session.LocalOutgoingServerSession.authenticateDomain(LocalOutgoingServerSession.java:210)
        at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.sendPacket(OutgoingSessionPromise.java:267)
        at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.run(OutgoingSessionPromise.java:243)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
2016.08.10 14:58:20 org.jivesoftware.openfire.net.DNSUtil - Can't process DNS lookup!
javax.naming.OperationNotSupportedException: DNS service refused [response code 5]; remaining name '_xmpp-server._tcp.proxy.eu.jabber.org'
        at com.sun.jndi.dns.DnsClient.checkResponseCode(DnsClient.java:662)
        at com.sun.jndi.dns.DnsClient.isMatchResponse(DnsClient.java:577)
        at com.sun.jndi.dns.DnsClient.doUdpQuery(DnsClient.java:426)
        at com.sun.jndi.dns.DnsClient.query(DnsClient.java:211)
        at com.sun.jndi.dns.Resolver.query(Resolver.java:81)
        at com.sun.jndi.dns.DnsContext.c_getAttributes(DnsContext.java:430)
        at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getAttributes(ComponentDirContext.java:231)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:139)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:127)
        at javax.naming.directory.InitialDirContext.getAttributes(InitialDirContext.java:142)
        at org.jivesoftware.openfire.net.DNSUtil.srvLookup(DNSUtil.java:167)
        at org.jivesoftware.openfire.net.DNSUtil.resolveXMPPDomain(DNSUtil.java:98)
        at org.jivesoftware.openfire.net.SocketUtil.createSocketToXmppDomain(SocketUtil.java:43)
        at org.jivesoftware.openfire.session.LocalOutgoingServerSession.createOutgoingSession(LocalOutgoingServerSession.java:253)
        at org.jivesoftware.openfire.session.LocalOutgoingServerSession.authenticateDomain(LocalOutgoingServerSession.java:210)
        at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.sendPacket(OutgoingSessionPromise.java:267)
        at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.run(OutgoingSessionPromise.java:243)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)