Hi ALLthe event ids were polling in the event viewer9320/9325/9360/93419360:OALGen can be forced to post a full offline address list by creating the DWORD registry key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeSA\Parameters\OAL post full if diff fails' and setting it to 1 on this server. When OALGen next generates the offline address list, clients will perform a full OAB download. After that time, the registry key should be removed to prevent further full downloads. 9320:OALGen could not generate full details for some entries in the offline address list for address list '\Global Address List'.To see which entries are affected, event logging for the offline address list generator must be set to at least medium.9325:OALGen will skip user entry "Name of USer' in address list '\Global Address List' because the SMTP address '' is invalid (server name)offline Address Book RASA

Looks like an articlehttp://support.microsoft.com/kb/922255talks pretty much about your problem though the troubleshooting steps may vary depending on version of exchange you are using. Here is I would start with; Check if you have the registry key'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeSA\Parameters\OAL post full if diff fails' set to 1. If yes set it back to 0 till the next generation of OAB. Bounce the diagnostics logging on Exchange Server to medium for OAB (http://technet.microsoft.com/en-us/library/aa996402(EXCHG.65).aspx) on components like MSExchangeSA\OALGenerator. This will help you to Use CSVDE to export the list of all email addresses in your Exchange Organization into a CSV file which can later be opened in Excel to figure out the non compliant email addresses. M

Hi Rabbani,Addition to Milind's response...Exchange performs certain verifications on each user's SMTP addresses and if it fails to verify then it doesn't add that user in OAB process.Since you got the user id in event log, verify primary SMTP address and proxy address attribute manually as explained in below KB...http://support.microsoft.com/kb/926206Similar thread...http://social.technet.microsoft.com/forums/en-US/exchangesvrdeploy/thread/7bf9648b-0bc2-4c0f-bee2-34b95a608185/Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Hi Amit Thanks for your response as per KB926206 i have found some user's SMTP address was blank and i have deleted them as they left. some more user list is polling as they are from our different SITE how to solve this RASA

Hi,Can you please give more detail? As you said edifferent SITE, are they in different Exchange organization?If those users are in same Exchange organization then you can correct the proxy addresses in ADU&C or by using ADSIEdit.msc as per KB.Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Hi Amit Yes, they are Different Administrative Group and some yours we have offline contacts if not need we can delete those contact so the errors may not poll again RASA

Hi,Please understand that the meaning of different Exchange organization is notthe same as Different Administrative Group.The Administrative Group is basically a collection of Exchange configuration objects. It functions as a place hoder within the Directory for the objects, such as servers, routing groups, public folder trees, system plicies.An Exchange organization defines your messaging environment. An organization includes all the Exchange servers, domain controllers, global catalog servers, users, and other Microsoft Active Directory directory service objects that function together as a single entity. Exchange organizations can include multiple Active Directory domains, but they cannot span multiple Active Directory forests.In one Exchange organization, you can create more than one AG based on the needs. Thus, thatare the differentconcepts.ThanksAllen

Hi Amiti have some questionsWhat is the maximum size of OAB if it increase how to expand ?i have to add all four registry entries as per KB which you re-direct to me?It seems about my problem that it conflict with some othe exchange in AG.God Blessings.....RASA

Hi,Generally spearking, Offline address book sizes can vary from 3 megabytes (MB) to 700 MB (uncompressed). For the maximum size of OAB, there is no limit whichdepended on the size of hard disk. And that process is changed automatically. So, we don't need to expand manually.ThanksAllen

Hi Mr. Allen SongThanks for your replyI would like to ask about KB926206 it shows to modify the registriesis it necessary please advice.God Blessings....RASA

Hi,Of course, that is necessary. Furthermore, did you try the OABInteg tool?http://support.microsoft.com/kb/907792/ThanksAllen

Hi MR. Allen SongI had run the tool and the result shown below 1) What warning is all about WARNING: Unable to retrieve the property for PR_PROFILE_HOME_SERVER_FQDN from the profile. Windows Message Subsystem profile registry subkey dca740c8c042101ab4b908002b2fe182 has no values. 2) Scan Completed+-------------+Message Class Normal found: 9Message Class Differential found: 178Message Class Unknown found: 0Message Attachments found: 0Messages found but unable to read the properties: 0System folders found: 4Highest sequence number found: 94Lowest sequence number found: 3Biggest attachment found: 0 BytesSmallest attachment found: 36500 BytesBiggest message found: 2.6 MBSmallest message found: 305 Bytes Scan Ended at: 08:42:37 AMc:\OABinteg.txt has been closed.So how can i find the size of my OAB if i want to know please.could you please explain about the Scan.God Blesings........... RASA

Hi,In Exchange 2003, the OAB was placed in Public Folder. To check the size, please expand the Public Folder store, you will get it.ThanksAllen