Mimecast Synchronisation Engine – MailboxUnreacheable CONFIGURATION INVALID

Exchange validation

[-] exchange mailbox validation failed, code: MailboxUnreacheable

CONFIGURATION INVALID

Open up

C:\ProgramData\Mimecast Synchronisation Engine\State

Create global.ini file

On the first line enter

Mse.Core.Bridge.SecurityProtocol=4032

Save , restart the Mimecast Synchronisation Service , and try again

How to turn on verbose login

Mse.Ews.Soap.Spy=true
Mse.Core.Soap.Spy=true
Mse.Core.LogLevel=All

(1 votes, average: 1.00 out of 5)

Barry Wood Thank you very much for this explanation. We currently have the same error message being reported by DFI, so this method of deleting the container is really apricated.
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