SMTP server reported: MESSAGE_NOT_DELIVERED; mail.SEND_FAILURE

[ict4u]

Hello,

I have Zimbra 8.6.0_GA_1153.FOSS on Ubuntu14

Everything was working fine and this morning I cannot send emails, I'm receiving error
=====================
method: [unknown]
msg: SMTP server reported: MESSAGE_NOT_DELIVERED
code: mail.SEND_FAILURE
detail: soap:Sender
trace: qtp1025799482-905:http://x.x.x.x:80/service/soap/SendMsgR ... 985e62b553
=====================

zimbra@mail:/root$ zmcontrol status
Host mail.domain.ext
amavis Running
antispam Running
antivirus Running
dnscache Running
ldap Running
logger Running
mailbox Running
mta Running
opendkim Running
service webapp Running
snmp Running
spell Running
stats Running
zimbra webapp Running
zimbraAdmin webapp Running
zimlet webapp Running
zmconfigd Running
zimbra@mail:/root$

I don't know where to start to fix this issue

Thank you for your assistance

[jorgedlcruz]

Hello,
Can you please debug the mailbox.log and paste us the exact error?

Best regards

[ict4u]

Hello, here is the content mailbox.log

Internal IP of mail.mydomain.com is 172.16.0.34

=======================
2017-06-24 10:46:54,983 INFO [qtp1025799482-8826:http://172.16.0.34:80/service/soap/SendMsgRequest] [name=admin@mydomain.com;mid=343;ip=154.70.121.35;ua=ZimbraWebClient - GC58 (Win)/8.6.0_GA_1153;] mailop - Adding Message: id=565, Message-ID=<955401182.621.1498294014966.JavaMail.zimbra@mydomain.com>, parentId=502, folderId=5, folderName=Sent.
2017-06-24 10:46:54,998 INFO [qtp1025799482-8826:http://172.16.0.34:80/service/soap/SendMsgRequest] [name=admin@mydomain.com;mid=343;ip=154.70.121.35;ua=ZimbraWebClient - GC58 (Win)/8.6.0_GA_1153;] smtp - Sending message to MTA at mail.mydomain.com: Message-ID=<955401182.621.1498294014966.JavaMail.zimbra@mydomain.com>, origMsgId=fbd723f2-2167-4c50-8f97-841aaaf3fc37:501, replyType=r
2017-06-24 10:46:55,025 WARN [qtp1025799482-8826:http://172.16.0.34:80/service/soap/SendMsgRequest] [name=admin@mydomain.com;mid=343;ip=154.70.121.35;ua=ZimbraWebClient - GC58 (Win)/8.6.0_GA_1153;] smtp - Failed to send message
com.zimbra.cs.mailclient.CommandFailedException: MAIL failed: 451 4.3.0 Temporary lookup error
at com.zimbra.cs.mailclient.smtp.SmtpConnection.mail(SmtpConnection.java:644)
at com.zimbra.cs.mailclient.smtp.SmtpConnection.sendInternal(SmtpConnection.java:556)
at com.zimbra.cs.mailclient.smtp.SmtpConnection.sendMessage(SmtpConnection.java:498)
at com.zimbra.cs.mailclient.smtp.SmtpConnection.sendMessage(SmtpConnection.java:481)
at com.zimbra.cs.mailclient.smtp.SmtpTransport.sendMessage(SmtpTransport.java:223)
at com.zimbra.cs.mailbox.MailSender.sendMessageToHost(MailSender.java:1107)
at com.zimbra.cs.mailbox.MailSender.sendMessage(MailSender.java:1032)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:646)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:454)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:409)
at com.zimbra.cs.service.mail.SendMsg.doSendMessage(SendMsg.java:236)
at com.zimbra.cs.service.mail.SendMsg.handle(SendMsg.java:168)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:569)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:432)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:266)
at com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:303)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:213)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:209)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:738)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1651)
at com.zimbra.cs.servlet.CsrfFilter.doFilter(CsrfFilter.java:168)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.RequestStringFilter.doFilter(RequestStringFilter.java:54)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(SetHeaderFilter.java:59)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:83)
at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:351)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ETagHeaderFilter.doFilter(ETagHeaderFilter.java:47)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ContextPathBasedThreadPoolBalancerFilter.doFilter(ContextPathBasedThreadPoolBalancerFilter.java:107)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ZimbraQoSFilter.doFilter(ZimbraQoSFilter.java:116)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ZimbraInvalidLoginFilter.doFilter(ZimbraInvalidLoginFilter.java:117)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at org.eclipse.jetty.servlets.DoSFilter.doFilterChain(DoSFilter.java:457)
at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:326)
at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:299)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:549)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:544)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1111)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:478)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:183)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1045)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:199)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:309)
at org.eclipse.jetty.server.handler.DebugHandler.handle(DebugHandler.java:81)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:462)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:279)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:232)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:534)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:607)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:536)
at java.lang.Thread.run(Thread.java:745)
2017-06-24 10:46:55,029 INFO [qtp1025799482-8826:http://172.16.0.34:80/service/soap/SendMsgRequest] [name=admin@mydomain.com;mid=343;ip=154.70.121.35;ua=ZimbraWebClient - GC58 (Win)/8.6.0_GA_1153;] mailop - Deleting Message (id=565).
2017-06-24 10:46:55,042 INFO [qtp1025799482-8826:http://172.16.0.34:80/service/soap/SendMsgRequest] [name=admin@mydomain.com;mid=343;ip=154.70.121.35;ua=ZimbraWebClient - GC58 (Win)/8.6.0_GA_1153;] SoapEngine - handler exception
com.zimbra.cs.mailbox.MailServiceException: SMTP server reported: MESSAGE_NOT_DELIVERED
ExceptionId:qtp1025799482-8826:http://172.16.0.34:80/service/soap/Send ... 985e62b553
Code:mail.SEND_FAILURE
at com.zimbra.cs.mailbox.MailServiceException.internal_SEND_FAILURE(MailServiceException.java:519)
at com.zimbra.cs.mailbox.MailServiceException.SEND_FAILURE(MailServiceException.java:531)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:712)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:454)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:409)
at com.zimbra.cs.service.mail.SendMsg.doSendMessage(SendMsg.java:236)
at com.zimbra.cs.service.mail.SendMsg.handle(SendMsg.java:168)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:569)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:432)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:266)
at com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:303)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:213)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:209)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:738)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1651)
at com.zimbra.cs.servlet.CsrfFilter.doFilter(CsrfFilter.java:168)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.RequestStringFilter.doFilter(RequestStringFilter.java:54)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(SetHeaderFilter.java:59)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:83)
at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:351)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ETagHeaderFilter.doFilter(ETagHeaderFilter.java:47)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ContextPathBasedThreadPoolBalancerFilter.doFilter(ContextPathBasedThreadPoolBalancerFilter.java:107)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ZimbraQoSFilter.doFilter(ZimbraQoSFilter.java:116)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at com.zimbra.cs.servlet.ZimbraInvalidLoginFilter.doFilter(ZimbraInvalidLoginFilter.java:117)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at org.eclipse.jetty.servlets.DoSFilter.doFilterChain(DoSFilter.java:457)
at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:326)
at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:299)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1622)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:549)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:544)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1111)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:478)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:183)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1045)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:199)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:309)
at org.eclipse.jetty.server.handler.DebugHandler.handle(DebugHandler.java:81)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:462)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:279)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:232)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:534)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:607)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:536)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.zimbra.cs.mailbox.MailSender$SafeSendFailedException: MESSAGE_NOT_DELIVERED; chained exception is:
com.zimbra.cs.mailclient.CommandFailedException: MAIL failed: 451 4.3.0 Temporary lookup error
at com.zimbra.cs.mailclient.smtp.SmtpTransport.notify(SmtpTransport.java:300)
at com.zimbra.cs.mailclient.smtp.SmtpTransport.sendMessage(SmtpTransport.java:232)
at com.zimbra.cs.mailbox.MailSender.sendMessageToHost(MailSender.java:1107)
at com.zimbra.cs.mailbox.MailSender.sendMessage(MailSender.java:1032)
at com.zimbra.cs.mailbox.MailSender.sendMimeMessage(MailSender.java:646)
... 57 more
2017-06-24 10:46:55,044 INFO [qtp1025799482-8826:http://172.16.0.34:80/service/soap/SendMsgRequest] [name=admin@mydomain.com;mid=343;ip=154.70.121.35;ua=ZimbraWebClient - GC58 (Win)/8.6.0_GA_1153;] soap - SendMsgRequest elapsed=80
2017-06-24 10:46:55,310 INFO [qtp1025799482-8826:https://127.0.0.1:7071/service/admin/so ... nfoRequest] [ip=127.0.0.1;ua=ZCS/8.6.0_GA_1153;] soap - GetDomainInfoRequest elapsed=0
2017-06-24 10:46:58,321 INFO [qtp1025799482-8825:https://127.0.0.1:7071/service/admin/so ... nfoRequest] [ip=127.0.0.1;ua=ZCS/8.6.0_GA_1153;] soap - GetDomainInfoRequest elapsed=0
2017-06-24 10:46:59,148 INFO [qtp1025799482-8823:https://127.0.0.1:7071/service/admin/so ... nfoRequest] [ip=127.0.0.1;ua=ZCS/8.6.0_GA_1153;] soap - GetDomainInfoRequest elapsed=0
2017-06-24 10:47:00,391 WARN [qtp1025799482-8826:https://172.16.0.34:7071/service/admin/ ... oryRequest] [ip=154.70.121.35;] SoapEngine - auth credentials have expired: unable to construct SOAP context
2017-06-24 10:47:00,965 INFO [qtp1025799482-8823:https://127.0.0.1:7071/service/admin/so ... nfoRequest] [ip=127.0.0.1;ua=ZCS/8.6.0_GA_1153;] soap - GetDomainInfoRequest elapsed=0
============================

[ict4u]

Hello,

after ready mailbox.log and zimbra.log, I solved the problem by following this link https://wiki.zimbra.com/wiki/ZimbraMtaMyNetworks

Thank you !