After connecting to Outlook 365 by IMAP and selecting a folder via Imap.SelectFolderAsync (read only mode), the value in Imap.CurrentFolder.TotalMessageCount is correct, but the value in NotSeenMessageCount is exactly the same value as in TotalMessageCount.
If I do Imap.GetFolderInfoAsync, the correct values are populated.
I'm using Rbex.Imap 7.0.8816 at the moment.