The EWS Simple Storage Service (S3) namespace “ews” includes the following standard buckets for storage of data.
EWS Simple Storage Service (S3) for the “ews” Namespace.
The “data” Bucket is used to store your data.
The “public” bucket can be accessed anonymously (unauthenticated) and is typically used to test access to your Namespace.
The “logs” Bucket is used to store Namespace audit log files.