Hello!
Since quite a time now we run our server on version 7.
Right after our migration the user experienced problems sending mails from the web frontend.
It occurs quite frequently - but I could not find any special pattern or trigger for its occurance. Often the mails get sent immediatly, without problems - often following error message appears (sometimes even over and over again).
I've check a lot of things over the time but just can't find a real trace related to this problem.
In my eyes it's nothing related to postfix but to the java webapp.
Does anybody have seen such errors too?
Does anybody see some starting point for me to debug?
Code:
method: [unknown]
msg: system failure: Unable to send message
code: service.FAILURE
detail: soap:Receiver
trace: com.zimbra.common.service.ServiceException:
system failure: Unable to send message ExceptionId:btpool0-430://my.server.com/service/soap/SendMsgRequest:1327932053294:f491678b0637d1f6 Code:service.FAILURE at
com.zimbra.common.service.ServiceException.FAILURE(ServiceException.java:248) at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:630) at
com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:425) at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:385) at
com.zimbra.cs.service.mail.SendMsg.doSendMessage(SendMsg.java:193) at com.zimbra.cs.service.mail.SendMsg.handle(SendMsg.java:154) at
com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:412) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:287) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:158) at
com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:294) at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:215) at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) at
com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:208) at javax.servlet.http.HttpServlet.service(HttpServlet.java:814) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(SetHeaderFilter.java:79) at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81) at
org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:132) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:218) at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at
org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:422) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at
org.mortbay.jetty.handler.rewrite.RewriteHandler.handle(RewriteHandler.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at
org.mortbay.jetty.handler.DebugHandler.handle(DebugHandler.java:77) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:583) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:986) at
org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:414) at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:429) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451) Caused by:
com.zimbra.cs.mailbox.MailSender$SafeMessagingException: Did not receive greeting from server; chained exception is: com.zimbra.cs.mailclient.MailException: Did not receive greeting from server at
com.zimbra.cs.mailclient.smtp.SmtpTransport.protocolConnect(SmtpTransport.java:183) at javax.mail.Service.connect(Service.java:291) at javax.mail.Service.connect(Service.java:172) at
javax.mail.Service.connect(Service.java:121) at com.zimbra.cs.mailbox.MailSender.sendMessageToHost(MailSender.java:898) at com.zimbra.cs.mailbox.MailSender.sendMessage(MailSender.java:831) at
com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:565) ... 39 more
request:
Body: {
SendMsgRequest: {
_jsns: "urn:zimbraMail",
m: {
--- snip snap ---
},
userAgent: {
name: "ZimbraWebClient - FF3.0 (Linux)",
version: "7.1.3_GA_3346"
}
}
} 
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Unable to send message: Did not receive greeting from server 
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