After that I wasn’t able to configure email anymore, even using the same, identical configuration. Update: Last night I switched from Ext2 to Ext4, so I reinitialized my 5N. There are some Drobo apps that can extend the functionality of your Drobo, but it still doesn’t come close to the versatility that you get with the QNAP lineup. It does what a traditional NAS should do, it serves up files. This is because there isn’t much to the Drobo. We already know that Drobo is a snap to set up.