Exchange Unified Messaging - voicemails not being delivered to mailbox

Status
Not open for further replies.
S

SK99

Hi there

We have recently implemented Exchange Unified Messaging server role (Exchange 2010 RTM) in the environment. The voice routing to the ExUM server is ok and calls are sent to the correct mailbox, played the correct greeting and can successfully leave a message. Users can dial in to the mailbox to record greetings and retrieve messages etc. etc.

However - issue is that once the message is left it does not get transported to the users Exchange Mailbox but remains spooled on the ExUM server

Event log shows the following:

A pipeline stage encountered the following error. Details : 'Microsoft.Exchange.Net.ExSmtpClient.TlsApiFailureException: A TLS API failure occurred. Error = 0x80090301

Server stack trace:
at Microsoft.Exchange.Net.ExSmtpClient.SmtpSslStream.SmtpSslHelper.Encrypt(Byte[] bytesToEncrypt, Int32 offset, Int32 numberOfBytesToEncrypt)
at Microsoft.Exchange.Net.ExSmtpClient.SmtpSslStream.SmtpSslHelper.Encrypt(Byte[] bytesToEncrypt)
at Microsoft.Exchange.Net.ExSmtpClient.SmtpSslStream.Write(Byte[] buffer, Int32 offset, Int32 size)
at Microsoft.Exchange.Net.ExSmtpClient.SmtpTalk.Command(SmtpChunk[] chunks, SmtpCommandType command, Int32 expectedCode)
at Microsoft.Exchange.Net.ExSmtpClient.SmtpTalk.Ehlo()
at Microsoft.Exchange.Net.ExSmtpClient.SmtpClient.Submit()
at Microsoft.Exchange.UM.UMCore.SmtpSubmitStage.SubmitMessage()
at Microsoft.Exchange.UM.UMCore.SmtpSubmitStage.InternalDoSynchronousWork()
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase)
at System.Runtime.Remoting.Proxies.RemotingProxy.Invoke(Object NotUsed, MessageData& msgData)
at Microsoft.Exchange.UM.UMCore.SynchronousPipelineStageBase.SynchronousWorkDelegate.EndInvoke(IAsyncResult result)
at Microsoft.Exchange.UM.UMCore.SynchronousPipelineStageBase.EndSynchronousWork(IAsyncResult r)'

-- This error is thrown every time the ExUM server tries to establish a connection to the Hub Transport Server

The Application Log event properties are: Event ID 1423 / Task Category: UMCore

This seems to be an encryption problem, but why? All servers are using the default self-signed certificates and there are no other transport problems in the Exchange Organisation.

One area I am suspicious of is the fact that the self signed certificates do not have the FQDN in the Subject CN=..... field - in my experience with TLS the FQDN is required, but in this case only the hostname is used.

I am planning to re-generate and assign the certificates to the Exchange services using the proper FQDN, but I need to be sure that I am covering all the bases.

Further to this - when looking through the Network Monitor trace I see the error as:

Protocol Name - SSL

Description - SSL :SSLv2RecordLayer, Error (needs reassembly)

Error: HandShakeMessageType: Error

ErrorType: Unknown Authentication Format

Has anyone else had experience with this problem and is there any further advice to add?

Thanks very much for your time and help with this
 
S

SK99

Hi - thanks for the response

Yes - the exchange UM server is the only one over which I have full control and the ability to tinker outside of change control as it is in pre-production. I have generated and installed a certificate with the correct FQDN on that server and assigned to the UM service

Of course, I have also tested with the certificate just using the host name as per the hub transport server as well to make sure that if the certificates were wrong, at least they were consistently wrong.

Thanks again
 
R

Rob.Ford

Hi,

Did you ever find out what caused this? We have the same problem on one of our UM servers and it's driving me mad. The UM service just constanly throws this message.

Cheers,

Rob
 
R

Rob.Ford

Hi,

I've resolved this. Our problem UM 2010 box was talking to a local 2010 CAS. The CAS server had had rootsupd.exe run on it to update the local computer " Trusted Root Certification Authorities" store.

This caused a TLS handshake failure between the UM and CAS servers because their were far too many trusted authorities for the process to work.

There were 314 trusted authorities on the CAS. I have trimmed these down to about 80 and UM immediately worked and this error went away (I also restarted the UM service just to be sure).

Cheers,

Rob
 
Status
Not open for further replies.
Thread starter Similar threads Forum Replies Date
M Exchange 2010 Unified Messaging - What is the Shortcut Command to bypass a greeting to leave a voice Exchange Server Administration 2
J Exchange Unified Messaging Migration to 2010 Exchange Server Administration 2
R Problem installing Unified Messaging on Exchange 2010 SP1 Exchange Server Administration 3
N Backing Up Exchange Calendar Using Outlook 13
A Ol16 desktopT suddenly can't connect with Exchange Using Outlook.com accounts in Outlook 5
T How can Exchange be configured to sync/push one-way so that the server data can't be affected Exchange Server Administration 0
E How to display "Change Folder" in Change Default Email Delivery Location in Exchange Outlook 2016 Using Outlook 1
J Outlook 2016 Moving IMAP emails to Exchange Using Outlook 1
L How to Import Exchange OST file into Outlook? Using Outlook 3
O Outlook 365 Exchange .ost within Personal Vaul Using Outlook 0
D Outlook 2016 Migrate 'On My Computer' (local storage) Calendar from Mac Outlook to Exchange Account Using Outlook 5
A .restrict results changing after moving to Exchange online Outlook VBA and Custom Forms 0
D Can Exchange Admin Center create a pst for users email/contacts/calendar? Exchange Server Administration 0
S Messages moved / deleted by auto-archive are not synchronized to exchange Exchange Server Administration 8
llama_thumper Setting up forwarders on Exchange server Exchange Server Administration 0
D Importing Outlook Categories from another domain (Exchange 2016/Outlook 2016) Using Outlook 4
M WMI query for Get Disk IO performance in exchange Exchange Server Administration 0
B Outlook 2013/Exchange 2013 - Conf Rooms not fully booking "resolved conflict" meetings Using Outlook 3
D Adding Enterprise Exchange Email Account to Outlook Prevents Sending via Outlook.com Account Using Outlook.com accounts in Outlook 10
O Benefits of Exchange over IMAP and why would I choose Exchange? Using Outlook 2
F Delete/create/reset Exchange mailbox on Outlook.com Using Outlook.com accounts in Outlook 3
A Prevent connection to Public Folders on Exchange? Exchange Server Administration 3
S Add Exchange Account as Secondary to Existing PST? Exchange Server Administration 1
S Adding new Exchange (2016) rule very slow down Microsoft Outlook Exchange Server Administration 0
CWM030 A quick question for Diane about Exchange Exchange Server Administration 2
G How to have domain client use owa server instead of exchange server while connect to network Using Outlook 1
J Outlook 2016 message content does not display - outlook.com; exchange Using Outlook.com accounts in Outlook 9
C Filter/Search emails sent to internal Exchange address only Using Outlook 2
B Copy/Move Exchange inbox to Pop inbox Using Outlook 4
Fozzie Bear Correct Method to set up Outlook.com accounts as Exchange Using Outlook.com accounts in Outlook 7
P AutoArchive exchange folder to exchange folder Using Outlook 1
J Syncing notes between Outlook 2016/Exchange and Outlook for Android Using Outlook 2
Brian Murphy Exchange Online Everything a Transport Rule should do and cannot Exchange Server Administration 1
E Customer wants a portion of GAL from exchange to sync down to Android contacts via Activesync Using Outlook 2
R Problem with searching public folders Exchange 2013/16 Exchange Server Administration 2
I outlook 2016 manual exchange config Using Outlook 0
R Add Exchange Account to existing POP3 Outlook 2007 Profile Using Outlook 0
Fozzie Bear Office 365 Home Premium with Exchange Online email accounts Using Outlook 3
S What is /O=FIRST ORGANIZATION/OU=EXCHANGE ADMINISTRATIVE GROUP(***************)/CN=RECIPIENTS/CN=... Using Outlook 5
Commodore Microsoft Exchange Add-in Using Outlook 2
D Winmail.dat with MS Exchange Personal and Outlook.com Using Outlook.com accounts in Outlook 5
I Outlook 2013 Transition to Exchange - weirdnesses Using Outlook.com accounts in Outlook 4
E you don't have permission to perform this action exchange 2016 Exchange Server Administration 0
Diane Poremsky Set Another Data File as Default When Using an Exchange Account New Slipstick.com Articles 0
PMR0001 Exchange cf Exchange ActiveSync Exchange Server Administration 1
PMR0001 Mydomain Outlook.com and Exchange post EAS Using Outlook 1
F Contacts folders not syncing with hosted exchange Using Outlook 3
L Receiving work/Exchange email to my personal email Using Outlook 2
R Outlook 2016 - How to change password in MS Exchange email client Using Outlook 0
T Uploading Outlook 2016 Contacts to Exchange Server Drops "Company" field data in 30% of records Exchange Server Administration 4
Similar threads


















































Top