Get External Email - java.net.UnknownHostException

[dusty_nz]

Just upgraded from 5.0.2 to 5.0.4 and now getting the following error when trying to get remote email. This is also with testing connection. Looks like a DNS issue however I can ping the address and config has not changes from the last working.

Testing connection to data source
javax.mail.MessagingException: Connect failed;
nested exception is:
java.net.UnknownHostException: mail.messagingengine.com
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3St ore.java:148)
at javax.mail.Service.connect(Service.java:275)
at com.zimbra.cs.datasource.Pop3Import.test(Pop3Impor t.java:107)
at com.zimbra.cs.datasource.DataSourceManager.test(Da taSourceManager.java:71)
at com.zimbra.cs.service.mail.TestDataSource.handle(T estDataSource.java:109)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:391)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:250)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:156)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:266)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:727)
at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:177)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1093)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserA gentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter .java:132)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:716)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:406)
at org.mortbay.jetty.handler.ContextHandlerCollection .handle(ContextHandlerCollection.java:211)
at org.mortbay.jetty.handler.HandlerCollection.handle (HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.handler.RewriteHandler.handle(Re writeHandler.java:176)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.co ntent(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:205)
at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.ru n(BoundedThreadPool.java:442)
Caused by: java.net.UnknownHostException: mail.messagingengine.com
at java.net.PlainSocketImpl.connect(PlainSocketImpl.j ava:177)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.j ava:366)
at java.net.Socket.connect(Socket.java:519)
at com.sun.mail.util.SocketFetcher.createSocket(Socke tFetcher.java:218)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFe tcher.java:176)
at com.sun.mail.pop3.Protocol.(Protocol.java:81)
at com.sun.mail.pop3.POP3Store.getPort(POP3Store.java :201)
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3St ore.java:144)
... 34 more

If I change the URL for an ip address I get

Testing DataSource: { id=TestId, type=pop3, isEnabled=false, name=Test, host=66.111.4.51, port=110, connectionType=cleartext, username=*********, folderId=-1 }
2008-04-21 05:32:35,633 INFO [btpool0-9] [name=*********;mid=3;ip=*********;ua=ZimbraWebClie nt - IE7 (Win)/5.0.4_GA_2101.RHEL5;] datasource - Testing connection to data source
javax.mail.AuthenticationFailedException: invalid command
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3St ore.java:146)
at javax.mail.Service.connect(Service.java:275)
at com.zimbra.cs.datasource.Pop3Import.test(Pop3Impor t.java:107)
at com.zimbra.cs.datasource.DataSourceManager.test(Da taSourceManager.java:71)
at com.zimbra.cs.service.mail.TestDataSource.handle(T estDataSource.java:109)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:391)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:250)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:156)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:266)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:727)
at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:177)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1093)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserA gentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter .java:132)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:716)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:406)
at org.mortbay.jetty.handler.ContextHandlerCollection .handle(ContextHandlerCollection.java:211)
at org.mortbay.jetty.handler.HandlerCollection.handle (HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.handler.RewriteHandler.handle(Re writeHandler.java:176)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.co ntent(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:205)
at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.ru n(BoundedThreadPool.java:442)
2008-04-21 05:32:35,634 INFO [btpool0-9] [name=********;mid=3;ip=*******;ua=ZimbraWebClient - IE7 (Win)/5.0.4_GA_2101.RHEL5;] datasource - Test failed: invalid command

[phoenix]

You're using the wrong type of connection aren't you? Shouldn't you be using a secure pop3 connection, if I do this:

telnet mail.messagingengine.com 995

I can connect to the server.

[dusty_nz]

Sorry no.

I can connect to the server on port 110 as well.
I have 4 connections setup and they all have this issue.

Manually validating the credentials is fine but testing or using the connection within zimbra causes issues.

Looks like a DNS issue however its not.
Maybe a java class?

Paul