We have 2 clustered mail servers. On my home server, my mail file is 200MB. On the replica server, my mail file is 130MB.
Both have been compressed using compact -B and show about the same space used (95%) from the Admin Client.
Why would the file size be so differenet on the 2 servers? Switching between the 2 mail files, they seem to be identical as they both contain the same amount of documents in the “All Documents” view.