I have the same problem here ...
ZD gives the following error message on screen:
„{0}”-communicatiefout. Controleer het nummer van de poort.
(translation: communication error. Check port number)
Debug-bericht: Unbuffered entity enclosing request can not be repeated.
Exception:
com.zimbra.common.service.ServiceException: system failure: PushChanges.sync
ExceptionId:sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl:1284545083867:756443219fc16cb1
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.mailbox.SyncExceptionHandler.checkRe coverableException(SyncExceptionHandler.java:55)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:296)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:182)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:173)
at com.zimbra.cs.mailbox.ZcsMailbox.sync(ZcsMailbox.j ava:109)
at com.zimbra.cs.mailbox.ZcsMailbox.syncOnTimer(ZcsMa ilbox.java:90)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:262)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: com.zimbra.common.zclient.ZClientException: Unbuffered entity enclosing request can not be repeated.
ExceptionId:sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl:1284545083863:756443219fc16cb1
Code:zclient.IO_ERROR
at com.zimbra.common.zclient.ZClientException.IO_ERRO R(ZClientException.java:45)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:2015)
at com.zimbra.cs.mailbox.PushChanges.uploadMessage(Pu shChanges.java:450)
at com.zimbra.cs.mailbox.PushChanges.syncMessage(Push Changes.java:1076)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:289)
... 7 more
Caused by: org.apache.commons.httpclient.ProtocolException: Unbuffered entity enclosing request can not be repeated.
at org.apache.commons.httpclient.methods.EntityEnclos ingMethod.writeRequestBody(EntityEnclosingMethod.j ava:483)
at org.apache.commons.httpclient.HttpMethodBase.write Request(HttpMethodBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.execu te(HttpMethodBase.java:993)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteWithRetry(HttpMethodDirector.java:397)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:396)
at com.zimbra.common.httpclient.HttpClientUtil.execut eMethod(HttpClientUtil.java:22)
at com.zimbra.common.httpclient.HttpClientUtil.execut eMethod(HttpClientUtil.java:18)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:2005)
... 10 more
Relevant logfile entries:
2010-09-15 12:04:43,873 ERROR [sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl] [] offline - sync failure:
jan-willem.stekelenburg@ampco-flashlight.nl
com.zimbra.common.service.ServiceException: system failure: PushChanges.sync
ExceptionId:sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl:1284545083867:756443219fc16cb1
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.mailbox.SyncExceptionHandler.checkRe coverableException(SyncExceptionHandler.java:55)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:296)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:182)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:173)
at com.zimbra.cs.mailbox.ZcsMailbox.sync(ZcsMailbox.j ava:109)
at com.zimbra.cs.mailbox.ZcsMailbox.syncOnTimer(ZcsMa ilbox.java:90)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:262)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: com.zimbra.common.zclient.ZClientException: Unbuffered entity enclosing request can not be repeated.
ExceptionId:sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl:1284545083863:756443219fc16cb1
Code:zclient.IO_ERROR
at com.zimbra.common.zclient.ZClientException.IO_ERRO R(ZClientException.java:45)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:2015)
at com.zimbra.cs.mailbox.PushChanges.uploadMessage(Pu shChanges.java:450)
at com.zimbra.cs.mailbox.PushChanges.syncMessage(Push Changes.java:1076)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:289)
... 7 more
Caused by: org.apache.commons.httpclient.ProtocolException: Unbuffered entity enclosing request can not be repeated.
at org.apache.commons.httpclient.methods.EntityEnclos ingMethod.writeRequestBody(EntityEnclosingMethod.j ava:483)
at org.apache.commons.httpclient.HttpMethodBase.write Request(HttpMethodBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.execu te(HttpMethodBase.java:993)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteWithRetry(HttpMethodDirector.java:397)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:396)
at com.zimbra.common.httpclient.HttpClientUtil.execut eMethod(HttpClientUtil.java:22)
at com.zimbra.common.httpclient.HttpClientUtil.execut eMethod(HttpClientUtil.java:18)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:2005)
... 10 more
2010-09-15 12:05:43,877 INFO [sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl] [] offline - >>>>>>>> name=jan-willem.stekelenburg@ampco-flashlight.nl;version=2.0;build=10514;release=BETA ;os=Windows 7 x86 6.1;server=6.0.8
2010-09-15 12:05:43,987 DEBUG [sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl] [] offline - starting delta sync [token 47980]
2010-09-15 12:05:43,987 DEBUG [sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl] [] offline - ending delta sync [token 47980]
2010-09-15 12:05:43,990 DEBUG [sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl] [] offline - starting change push
2010-09-15 12:06:13,858 ERROR [sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl] [] offline - sync failure:
jan-willem.stekelenburg@ampco-flashlight.nl
com.zimbra.common.service.ServiceException: system failure: PushChanges.sync
ExceptionId:sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl:1284545173854:756443219fc16cb1
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.mailbox.SyncExceptionHandler.checkRe coverableException(SyncExceptionHandler.java:55)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:296)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:182)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:173)
at com.zimbra.cs.mailbox.ZcsMailbox.sync(ZcsMailbox.j ava:109)
at com.zimbra.cs.mailbox.ZcsMailbox.syncOnTimer(ZcsMa ilbox.java:90)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:262)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: com.zimbra.common.zclient.ZClientException: Unbuffered entity enclosing request can not be repeated.
ExceptionId:sync-mbox-jan-willem.stekelenburg@ampco-flashlight.nl:1284545173854:756443219fc16cb1
Code:zclient.IO_ERROR
at com.zimbra.common.zclient.ZClientException.IO_ERRO R(ZClientException.java:45)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:2015)
at com.zimbra.cs.mailbox.PushChanges.uploadMessage(Pu shChanges.java:450)
at com.zimbra.cs.mailbox.PushChanges.syncMessage(Push Changes.java:1076)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:289)
... 7 more
Caused by: org.apache.commons.httpclient.ProtocolException: Unbuffered entity enclosing request can not be repeated.
at org.apache.commons.httpclient.methods.EntityEnclos ingMethod.writeRequestBody(EntityEnclosingMethod.j ava:483)
at org.apache.commons.httpclient.HttpMethodBase.write Request(HttpMethodBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.execu te(HttpMethodBase.java:993)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteWithRetry(HttpMethodDirector.java:397)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:396)
at com.zimbra.common.httpclient.HttpClientUtil.execut eMethod(HttpClientUtil.java:22)
at com.zimbra.common.httpclient.HttpClientUtil.execut eMethod(HttpClientUtil.java:18)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:2005)
... 10 more
2010-09-15 12:06:36,867 DEBUG [IMAP IDLE thread] [] imap - S: * OK Still here
2010-09-15 12:06:48,058 DEBUG [IMAP IDLE thread] [] imap - S: * 2057 EXISTS
2010-09-15 12:06:48,058 DEBUG [IMAP IDLE thread] [] imap - S: * 1 RECENT