Trying to setup a Mimecast Sync Engine Application on Prem out the Box comes up with 

“validation failed: invalid mimecast user or insufficient permissions”

This is because by default 2fa is enabled on all Accounts created in Mimecast , you need create a new Authentication Profile and Disable 2fa on this , then assign it to that user group and bind it all together with a Profile

 

validation failed: invalid mimecast user or insufficient permissions, 10.0 out of 10 based on 2 ratings

Tags: 2fa, mimecast, validation failed: invalid mimecast user or insufficient permissions

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