I get this message when emClient tries to back up my mail. I use Bitdefender and I have given permission to access the folder.
System.UnauthorizedAccessException: Access to the path ‘F:\em Client Backup\backup_201706070256.zip’ is denied. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.File.InternalDelete(String path, Boolean checkHost) at System.IO.File.Delete(String path) at MailClient.Storage.Backup.BackupFilesCollection.RemoveOldBackups(Int32 preserveCount) at DbBackup.FormBackup.Backup(CancellationToken cancellationToken) at DbBackup.FormBackup.b__28_0(Object a, DoWorkEventArgs b) at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)