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OAL Generator errors query

Posted on 2009-04-13
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Hi

I a getting an Event ID 9327 in the Application event log of one of my Exchange 2003 servers that is the OAB generator.

OALGen skipped some entries in the offline address list '\Global Address List'.  To see which entries are affected, event logging for the OAL Generator must be set to at least medium.
- Offline Address List

So, I have turned up Diagnostic Logging.

Question though - is there a certain point at which this error is displayed? For instance, 10 errors, 1000 errors etc? And does ignoring this have any negative impact on the Exchange system as a whole?

Also, once the logging was turned on, I am getting 9324 AND 9325 errors. Can anyone tell me the difference between the two? I understand the 9325 errors where it says the SMTP address is invalid - this can be fixed. However, I am getting a lot of 9324 errors as below;

No User,OALGen will skip user entry 'User1' in address list '\Global Address List' because the legacyExchangeDN 'cn=user' is invalid

Any ideas what is causing the above error?


Many thanks in advance.
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Question by:Joe_Budden
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Expert Comment

by:s1d3wind3r
ID: 24131410
the 9324 errors are caused when there is no user account associated with the mailbox, ive seen this happen before when a user has been removed from AD and their mailbox has not been removed from exchange.

this could indicate that your mailbox store could do with a cleanup. the error should report which user is affected. to remove the error...remove the mailbox :)

past back if you have any issues

cheers
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Author Comment

by:Joe_Budden
ID: 24131462
Hi there!

Thanks for answering

The weird thing is - from what I can see, the 9324 errors relate to mail enabled contacts? Should these actually have a legacyexchangedn?

And what exactly is a legacyexhangedn?? :)
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Expert Comment

by:s1d3wind3r
ID: 24131533
Hi Joe,

A LegacyExchangeDN is a value stored in AD that is a throwback from Exchange 5.x and is explained in more detail here
http://www.msexchange.org/tutorials/Understanding-LegacyExchangeDN.html

how many affected contacts are there? would it be appropriate to suggest recreating them in AD?

Thanks

Ollie
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Author Comment

by:Joe_Budden
ID: 24131716
Hey Ollie,

There are actually quite a few...strange that we didn't get the 9327 Event ID before;

OALGen skipped some entries in the offline address list '\Global Address List'.  To see which entries are affected, event logging for the OAL Generator must be set to at least medium.
- Offline Address List

Do you know if this error is logged once there are a certain number of LegacyExchangeDN/proxyAddress errors?

I notice that there is a LegacyExchangeDN tool as well in your link, I'll have a look at that to see if I need to correct any of these entries.
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Accepted Solution

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s1d3wind3r earned 2000 total points
ID: 24131770
Hi Joe,
I would imagine that OAL errors are logged everytime generation occurs. will keep researching and get back to you with an answer.

let me know how the Legacy tool goes

Cheers

Ollie
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