After uploading a file with 33 characters + .pdf in the name to my briefcase (the pdf is also 6mb in size), I suddenly have a perpetual "exclamation point" error icon next to my name and mailbox size in the top left. When I click on it, the error reported is below. I can still go to my briefcase and open the file in question.

"{0}" communication error. Please check port number.

Debug message: Unbuffered entity enclosing request can not be repeated.

Exception:

com.zimbra.common.service.ServiceException: system failure: PushChanges.sync
ExceptionId:mid=2:1241121384139:98b8b202ccccd088
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:253)
at com.zimbra.cs.mailbox.SyncExceptionHandler.checkRe coverableException(SyncExceptionHandler.java:40)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:373)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:174)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:189)
at com.zimbra.cs.mailbox.OfflineMailbox.sync(OfflineM ailbox.java:140)
at com.zimbra.cs.mailbox.OfflineMailbox.syncOnTimer(O fflineMailbox.java:121)
at com.zimbra.cs.mailbox.DesktopMailbox$1.run(Desktop Mailbox.java:436)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: com.zimbra.common.service.ServiceException: resource unreachable: HttpException while fetching http://mail.myserver.net/home/~/Brie...on.pdf?auth=co
ExceptionId:mid=2:1241121384139:98b8b202ccccd088
Code:service.RESOURCE_UNREACHABLE
at com.zimbra.common.service.ServiceException.RESOURC E_UNREACHABLE(ServiceException.java:275)
at com.zimbra.cs.service.UserServlet.doHttpOp(UserSer vlet.java:1453)
at com.zimbra.cs.service.UserServlet.putMailItem(User Servlet.java:1369)
at com.zimbra.cs.mailbox.OfflineMailbox.sendMailItem( OfflineMailbox.java:812)
at com.zimbra.cs.mailbox.PushChanges.syncDocument(Pus hChanges.java:1069)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:370)
... 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 org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:324)
at com.zimbra.cs.service.UserServlet.doHttpOp(UserSer vlet.java:1441)
... 11 more