About once per day I receive an email with the subject = Server Failure Notice that contains a source object and a error_report.xml file that looks like:

com.zimbra.cs.mailbox.MailServiceException: cannot modify immutable object: 46581 ExceptionId:btpool0-52504://mail.teladoc.com/service/soap/SaveDraftRequest:1308756864583:a16b14e5b06d0655 Code:mail.IMMUTABLE_OBJECT ArgitemId, IID, "46581") at com.zimbra.cs.mailbox.MailServiceException.IMMUTAB LE_OBJECT(MailServiceException.java:379) at ...

Full file below.

Any ideas what this message means?

Thanks,
Jeff

************************************************
f7592a5a-1ba0-47f4-b624-0c1c0085411c
0_f9e36d1bbc8660a542bde262d26de6e4a7c631a4_69643d3 3363a66373539326135612d316261302d343766342d6236323 42d3063316330303835343131633b6578703d31333a3133303 83932393633343232303b747970653d363a7a696d6272613b




















soap:Sender


cannot modify immutable object: 46581



mail.IMMUTABLE_OBJECT
com.zimbra.cs.mailbox.MailServiceException: cannot modify immutable object: 46581 ExceptionId:btpool0-52504://mail.companyx.com/service/soap/SaveDraftRequest:1308756864583:a16b14e5b06d0655 Code:mail.IMMUTABLE_OBJECT ArgitemId, IID, "46581") at com.zimbra.cs.mailbox.MailServiceException.IMMUTAB LE_OBJECT(MailServiceException.java:379) at com.zimbra.cs.mailbox.Mailbox.saveDraft(Mailbox.ja va:4825) at com.zimbra.cs.service.mail.SaveDraft.handle(SaveDr aft.java:116) at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:420) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:274) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:158) at com.zimbra.soap.SoapServlet.doWork(SoapServlet.jav a:291) at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:212) at javax.servlet.http.HttpServlet.service(HttpServlet .java:725) at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:181) at javax.servlet.http.HttpServlet.service(HttpServlet .java:814) at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1166) at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(Set HeaderFilter.java:79) at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1157) at org.mortbay.servlet.UserAgentFilter.doFilter(UserA gentFilter.java:81) at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter .java:155) at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:388) at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:218) at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:422) at org.mortbay.jetty.handler.ContextHandlerCollection .handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerCollection.handle (HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.handler.rewrite.RewriteHandler.h andle(RewriteHandler.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.handler.DebugHandler.handle(Debu gHandler.java:77) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:543) at org.mortbay.jetty.HttpConnection$RequestHandler.co ntent(HttpConnection.java:946) at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:756) at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:405) at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:410) at org.mortbay.thread.BoundedThreadPool$PoolThread.ru n(BoundedThreadPool.java:451)
46581