Unity 5 - Exchange "The message server is offline..."

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Oct 23rd, 2008
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Voicemail system works perfectly during a year, but suddenly users can not consult their voice messages, and hear the message " Tne message server is offline..." Help please. What could I do for fix this problem?

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Overall Rating: 3.5 (2 ratings)
ranpierce Thu, 10/23/2008 - 13:23
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This message mean Unity can not talk to exchange. Check Exchange services, is/are the mailstore(s) mounted.


John Gutierrez Thu, 10/23/2008 - 13:32
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Thaks. The mail store is mounted. How can I check that all requiered Exchange services are up, and how can I fix it? A server restart could fix the problem?

ranpierce Thu, 10/23/2008 - 13:39
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A unity reboot would try to restart all of the exchange services, however that may or may not start what needs to be started.

Have a user with the problem log to voicemail and try to check their messages. Then check the event log on the Unity for errors at the same time.


tim.giles Thu, 10/23/2008 - 23:39
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As Randy suggested, have a look at the services on the Unity server to make sure they are all started (services.msc). Errors in the event log will generally give you a good clue to what the problem is..

Has any work been carried out on the exchange servers recently, or has the integration changed in Unity?

John Gutierrez Fri, 10/24/2008 - 07:19
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Hi! thanks. Finally I could review the server (yesterday I just received a call reporting the case)and I have founded that the problem is that there is not free space on hard drive where the messages are store. The server has a partition, and the other partitíon is almost free, and is bigger that the partitio that is full. How can I reconfigure the sytem and said it that save the messages in the bigger partition?

Tommer Catlin Fri, 10/24/2008 - 07:23
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You can move the message store PRIV and PUB databases for Exchange. Im assuming you are running Voicemail Only setup with Unity and Exchange is onbox or possibly offbox exchange.

to move the logs, etc


Also, if you do not backup the Exchange server or have circular logging turned, the Exchange logs will build to the point the disk full

mikram Fri, 10/24/2008 - 07:31
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As mentioned, Circular logging is quick fix as it over writes the old backup files.

John Gutierrez Mon, 10/27/2008 - 06:09
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Thanks for all your replies. Temporally I can fix the problem,but I need to configure Cisco Unity to automatically delete messages. I founded that it is possible through "Message Store Manager" tool. I download this tool from http://www.ciscounitytools.com but I don't know if it works fine with Cisco Unity 5 with Exchange. Do you have any knowledge about this tool?

tim.giles Mon, 10/27/2008 - 07:32
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Yes, all the info is on the same website. It will work with Unity 5 but I don't know about Exchange versions 2003 & 2007 (it only says up to Exchange 2000 on the website):


You might want to consider some mailbox quotas so you don't have to worry about things like this in future. More info here:


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