Hi,I'm getting this error intermittently on one of three servers that I monitor; because of Exchange 2007 and limitations of the MS Search Engine, all I get are hundreds of irrelevant Exchange 2007 documents. Exchange 2003 running on SBS 2003 R2MSExchangeIS Mailbox StoreEvent ID 2007mt_open returned error 0x15 on database First Storage Group\Mailbox Store (ServerName)Any help would be greatly appreciated.

Hi, Are you facing any problem in Exchange? I think this event comes when you have enabled diagnostics logging for MSExchangeIS Mailbox Store and you can disable diagnostics logging or ignore this error if Exchange is working fine and users are not facing any problem. How to Configure Diagnostics Logging http://technet.microsoft.com/en-us/library/aa996402(EXCHG.65).aspx

Thank you; I wondered if this was that type of message ("full of sound and fury; signifying nothing."). My not knowing enough about Exchange, I need to treat any error as serious.