I have problems with OAB. Some users not present in OAB. During generation OAB I have many errors from MSExchangeSA. id 9323 Entry 'user123' has invalid or expired e-mail certificates. These certificates will not be included in the offline address list for '\Global Address List'. I want to increase values for OAB MaxBinaryPropertySize : 32768 MaxMultivaluedBinaryPropertySize : 65536 MaxStringPropertySize : 3400 MaxMultivaluedStringPropertySize : 65536 Whether can solve it a problem? Whether will lead to problems at installation of updatings, etc.? id 9359 OALGen truncated or dropped properties for entry 'user234' in address list '\Global Address List' because they exceeded the configured size limits for the version 4 offline address list. The affected MAPI ids are: 8008.

This would be helpful for user123 http://www.eventid.net/display.asp?eventid=9323&eventno=5137&source=MSExchangeSA&phase=1 Can you increase more logging if possible to get more events, http://social.technet.microsoft.com/Forums/en/exchange2010/thread/6a5cebd7-4c64-4a00-98d8-f635c26c6c3e

Sorry my English. Basic Trouble for me - Some users not present in OAB. I increase log level (medium, high), but have not other error. only id 9323,id 9359. Majority of Users with this error present in OAB.

This error indicates that you have an expired certificate. Hence, the users cannot be displayed normally in OAB. I suggest you verify your certificate first to check the result. For more information, please refer to the following article: http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Exchange&ProdVer=6.5.7596.0&EvtID=9323&EvtSrc=MSExchangeAdmin&LCID=1033 Thanks.Novak Wu-MSFT

Thanks, Novak Wu. For two users clearing published certificates in AD. And they present in OAB. But I want solve problem globaly. I suggest for this: I want to increase values for OAB MaxBinaryPropertySize , MaxMultivaluedBinaryPropertySize . This is help me???