Unknown stored files

[zareed]

Hi guys,

By doing some researches on how "Zimbra Desktop" store local data, I noticed the client use the same topology than a classic "Zimbra" server.
Anyway, I found three ".msg" files that do not seem to be messages (unreadable, just some data) following this path : C:/Users/{username}/appdata/local/Zimbra Desktop/store/0/2/msg/0.
These three files are found in others computers using "Zimbra Desktop" and have exactly the same size : 3ko, 27ko and 92ko in each computer.

I searched but I found nothing on these three files.
Did someone have some information about these files ?

Thanks in advance for the help and sorry for my bad english..

zareed