Was there ever a fix for this? Looks like I have run into a similar issue.
Code:
msg - system failure: IOException
com.zimbra.common.service.ServiceException: system failure: IOException
at com.zimbra.common.service.ServiceException.FAILURE(ServiceException.java:175)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:304)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:124)
at com.zimbra.cs.operation.SendMsgOperation.callback(SendMsgOperation.java:114)
at com.zimbra.cs.operation.Operation.schedule(Operation.java:190)
at com.zimbra.cs.service.mail.SendMsg.handle(SendMsg.java:140)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:262)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:162)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:84)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:223)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:162)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.io.IOException: No content
at javax.mail.internet.MimePartDataSource.getInputStream(MimePartDataSource.java:82)
at javax.activation.DataHandler.writeTo(DataHandler.java:287)
at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1209)
at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:709)
at javax.mail.internet.MimeMultipart.writeTo(MimeMultipart.java:271)
at com.sun.mail.handlers.multipart_mixed.writeTo(multipart_mixed.java:67)
at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:839)
at javax.activation.DataHandler.writeTo(DataHandler.java:295)
at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1209)
at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1614)
at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1590)
at com.zimbra.cs.mime.ParsedMessage.mimeToRaw(ParsedMessage.java:286)
at com.zimbra.cs.mime.ParsedMessage.getRawData(ParsedMessage.java:299)
at com.zimbra.cs.mailbox.Mailbox.addMessage(Mailbox.java:3203)
at com.zimbra.cs.mailbox.Mailbox.addMessage(Mailbox.java:3181)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:224)
... 26 more
code - service.FAILURE
method - ZmCsfeCommand.prototype.invoke
detail - soap:Receiver