Troubleshooting and FAQ for our Office365/Exchange migration tool

What Items are not migrated by Migration Monster
The following is a list of items not migrated by Migration Monster. This is mainly due to email software limitations (API). Mail Settings Calendar ...
Wed, 22 Mar, 2017 at 5:28 PM
Can I migrate large items like attachments?
Migration Monster allows the transfer of large items but it is possible they could fail due to limitations configured on the destination email server. I...
Mon, 20 Feb, 2017 at 11:10 AM
How long will a migration take?
How long will a migration take? This is a tricky one as there are so many things that can affect the duration of a migration. Let's go through t...
Fri, 27 Dec, 2019 at 1:26 PM
How do I disable throttling on Office 365 and Exchange server?
---------------------------------------------------------------------------------------------------------- Published by Migration Monster - Mailbox Migrat...
Wed, 24 Oct, 2018 at 11:19 AM
Source and destination mailboxes do not match
Please note, Migration Monster remembers what items have been migrated to the destination. If you delete items on the destination and then run the project a...
Wed, 22 May, 2019 at 7:00 PM
Error:(507) Insufficient Storage & The message exceeds the maximum supported size
This error is caused by a default Exchange server settings preventing the movement of a large message/attachment. Exchange servers have their own attach...
Thu, 22 Mar, 2018 at 2:28 PM
The SMTP address has no mailbox associated
Most of the time this issue relates to an error when typing in the username for the mailbox to be migrated (or for the admin account if this option is used)...
Fri, 29 Nov, 2019 at 6:58 PM
How do I create an administrator account for Exchange 2010
To create an account, perform the following from the Exchange Server 2010 server: Open the Exchange Management Console. Expand Recipient Configuration...
Fri, 9 Mar, 2018 at 11:26 AM
401 Unauthorized ( Unauthorised)
Error: The remote server returned an error: (401) Unauthorized. 401 Unauthorized (Unauthorised): The login details used to access the mailbox are invali...
Wed, 19 Feb, 2020 at 2:00 PM
How do I create an account on Office 365 for the migration?
How do I create an account on Office 365 for the migration? If possible use the global admin account setup when the tenant was created but if this is n...
Mon, 14 May, 2018 at 1:21 PM