i am new in zimbra and i have installed a test server so i could test settings before i put into our working mail server, during authentication from data source i got this error in mailbox.log

com.zimbra.common.service.ServiceException: system failure: Unable to connect to mail store: DataSource: { id=TestId, type=pop3, isEnabled=false, name=Test, host=mail.domain.com.ph, port=110, connectionType=cleartext, username=zimbra5.test, folderId=-1 }
ExceptionId:btpool0-7:1328247339630:39b936b4fa7dc414
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:253)
at com.zimbra.cs.datasource.Pop3Import.connect(Pop3Im port.java:292)
at com.zimbra.cs.datasource.Pop3Import.test(Pop3Impor t.java:82)
at com.zimbra.cs.datasource.DataSourceManager.test(Da taSourceManager.java:64)
at com.zimbra.cs.service.mail.TestDataSource.handle(T estDataSource.java:129)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:429)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:286)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:160)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:269)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:727)
at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:190)
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.rewrite.RewriteHandler.h andle(RewriteHandler.java:350)
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$RequestHandler.co ntent(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.ru n(BoundedThreadPool.java:442)
Caused by: javax.mail.MessagingException: Connect failed;
nested exception is:
java.net.SocketTimeoutException: connect timed out
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.connect(Pop3Im port.java:289)
... 33 more
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl .java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSoc ketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.j ava:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.j ava:366)
at java.net.Socket.connect(Socket.java:520)
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.<init>(Protocol.java:93 )
at com.sun.mail.pop3.POP3Store.getPort(POP3Store.java :201)
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3St ore.java:144)


and i was wondering what is causing this error

thanks in advance

Mark