I don't really know if it's a bug, or if it's supposed to work like that, but it's a bit confusing and took me almost an hour to figure out

In the mail module, if you click on "Others Users" the shared folders don't unfold, instead SOGo tries to access a (not existing) "Other users" IMAP folder. SOGo log shows :

Mar 10 09:39:39 sogod [22553]: [ERROR] <0x0x7f590fd08450[NGImap4Connection]> could not select URL: imaps://john.doe@mail.example.net/Other%20Users/: {RawResponse = "{ResponseResult = {description = \"Mailbox does not exist\"; result = no; tagId = 8; }; ok = {CLOSED = Ok; }; }"; reason = "Mailbox does not exist"; result = 0; }

Of course if you click on the folder icon instead of the "Other Users" label, everything works fine.

I think clicking on the label should unfold the shared folders. Or at least, it shouldn't produce a (wrong) error message in the logs.