The MAPI call 'OpenMsgStore' failed with the following error: The Microsoft Exchange Server computer is not available. Either there are network problems or the Microsoft Exchange Server computer is down for maintenance. The MAPI provider failed. Microsoft Exchange Server Information Store ID no: 8004011d-0526-00000000 Unexpected error <<0xc1050000 - The Microsoft Exchange Server computer is not available. Either there are network problems or the Microsoft Exchange Server computer is down for maintenance. The MAPI provider failed. Microsoft Exchange Server Information Store ID no: 8004011d-0526-00000000>> occurred. Error 0x80040102 starting Storage Group /DC=com/DC=tpsoffline/CN=Configuration/CN=Services/CN=Microsoft Exchange/CN=First Organization/CN=Administrative Groups/CN=First Administrative Group/CN=Servers/CN=TPSEXCHANGE/CN=InformationStore/CN=First Storage Group on the Microsoft Exchange Information Store. MDB failed to start. Error 0x80040102 starting database "First Storage Group\Mailbox Store" on the Microsoft Exchange Information Store. Error initializing session for virtual machine TPSEXCHANGE. The error number is 0x8004011d. Make sure Microsoft Exchange Store is running. Error 0xfffffb4d starting database "First Storage GroupCORRUPT\Mailbox Store (TPSEXCHANGE)" on the Microsoft Exchange Information Store.Haseeb

Hi, Kindly confirm which version of Exchange is it & details which command have you ran & the above error occurredRipu Daman Mina | MCSE 2003 & MCSA Messaging

I was creating wrong Mailbox store. Actually correct Mailbox Store name was Mailbox Store (TPSEXCHANGE) Haseeb