if you exclude the folder from a/v scanning, the rebuild will probably succeed.
here is a blog post i wrote on this general topic: http://theessentialexchange.com/blogs/michael/archive/2007/12/05/file-level-antivirus-for-exchange.aspx ________________________________ From: Graeme Carstairs [loonyto...@gmail.com] Sent: Tuesday, September 29, 2009 10:34 AM To: MS-Exchange Admin Issues Subject: Tren quarantined post in OAB System Folder. Hi, i have just inherited an Exchange 2003 server and it has been showing errors in generating OAB. So following much google fu, I had found the attached page. http://forums.msexchange.org/m_1800436892/printable.htm 2nd bottom replay from scott.french suggest that it is a corrupt OAB file and to change the age limit on the folder. When I checked the post in the OAB4 folde rI discovered that there is one post and when opened it shows a list of atachemnts to big to fit on the OWA screen, all removed and replaced with tct files of the type REMOVED_BY_THE_EXCHANGE_EMAIL_SCANNING_SERVICE_008BC5E7_55E9F.txt?attach=1 Now this is what Trend puts in when it removes something. They are currently on Client Server Suite for SMB V3.6 with the Exchange module. I cannot delete this post and rebuilds fail. Anyone got any suggestions as to what to do to get rid of the post, and to ensure that trend doesnt snaffle it again. TIA Graeme -- Good news everyone, you have just received and e-mail from me! Joan Crawford<http://www.brainyquote.com/quotes/authors/j/joan_crawford.html> - "I, Joan Crawford, I believe in the dollar. Everything I earn, I spend."