The 3638323 to 1605548 a 1450464 of 14434154 in 1270284 on 508384 that 503295 is 492114 said 487849 with 423779 at 408185. Office-2013.png' alt='Cannot Open Mailbox Cn Microsoft System Attendant 2013 Movies' title='Cannot Open Mailbox Cn Microsoft System Attendant 2013 Movies' />Error Migrating Mailbox From Exchange 2. To Exchange 2. 01. Written by Allen White on May 3, 2. Posted in Exchange 2. Exchange 2. 01. 3If you are migrating your users mailboxes from Exchange 2. Services AntiSpam Email Scams October 2012. The following email scams were reported to the AntiSpam Compliance Unit. Links to scam web pages have been. Exchange 2. 01. 3 then you may come across the following problem. When you migrate your mailboxes, one or a number of mailboxes may generate the following error. Where X is the mailbox it has failed on and X2 is the total number of mailboxes. Transient error Storage. Transient. Exception has occurred. The system will retry xx. Cannot Open Mailbox Cn Microsoft System Attendant 2013 Movies' title='Cannot Open Mailbox Cn Microsoft System Attendant 2013 Movies' />Express Helpline Get answer of your question fast from real experts. When migrating mailboxes you may see a Transient error StorageTransientException has occurred, this is because the mailbox is poisoned and quarantined. Additional error information may contain. Error Migration. Permanent. Exception Error Cannot open mailbox oFirst Exchange OrganizationouExchange Administrative Group FYDIBOHF2. SPDLTcnConfigurationcnServerscnS1. Microsoft System Attendant. Mapi. Exception. Mailbox. Quarantined Unable to open message store. Diagnostic context Lid 5. EMSMDBPOOL. Ec. Pool. Download Adobe Reader For Palm Tx Software. Session. Do. Rpc called length1. Lid 4. 35. 59 EMSMDBPOOL. Ec. Pool. Session. Do. Rpc returned ec0x. Lid 5. 21. 76 Client. Version 1. 5. 0. Lid 5. Server. Version 1. Lid 2. 32. 26 ROP Parse Start Lid 2. ROP rop. Logon 2. Lid 1. 70. 82 ROP Error 0x. A3. 3 Lid 2. 69. Lid 2. Store. Ec 0x. A3. Lid 2. ROP rop. Extended. Error 2. 50 Lid 1. Remote Context Beg Lid 5. Lid 3. 28. 48 dw. Param 0x. 14 Lid 6. Store. Ec 0x. A3. Lid 5. 68. 72 dw. Param 0x. FE Lid 4. Store. Ec 0x. A3. Lid 1. 07. 86 dw. Param 0x. 0 Msg 1. Lid 1. 75. 0 Remote Context End Lid 2. Lid 2. 18. 17 ROP Failure 0x. A3. 3 Lid 2. 62. Lid 1. Store. Ec 0x. A3. Lid 3. Lid 1. 70. Store. Ec 0x. A3. Lid 2. Lid 2. 06. Store. Ec 0x. A3. Lid 2. Lid 2. 98. Store. Ec 0x. A3. Exchange Mailbox Poisoned. You are seeing this error because the mailbox that has failed to migrate is in a poisoned state and has been quarantined. A mailbox may be tagged as poisoned for numerous reasons such as corrupt attachments and emails or a virus or malware has been found in the mailbox. You have two options, you can either delete the mailbox or remove the poisoned state of the mailbox. Removing a Mailbox From Quarantine. To remove a mailbox from quarantine in Exchange 2. Exchange 2. 01. 3 we first need to get its GUID. To do so run the following command. Replacing username with the username of the mailbox that has been quarantined. Then make a note of the GUID of the mailbox. Now that you have the GUID of the mailbox we need to browse to the following key in the registry and remove the key that mentiones the GUID. HKLMSYSTEMCurrent. Control. SetServicesMSExchange. ISPrivate db guidQuarantined. Mailboxesthe mailbox guid. One you have removed the offending GUID then you need to restart IIS with the following comand. Once done you will be able to migrate the mailbox as it is no longer quarantined. Tags GUID, mailbox. Allen White. Allen is a Consultant for ITPS in the North East of England and holds the following accreditations. MCSA, MCSE, MCTS, MCITP, CCA, CCSP, VCP 4,5 and HP ASE, AIS Network Infrastructure. Please enable cookies and refresh the page.