Luigi probably doesn't know that email suspensions have to wait until the mail counter resets before they can be unsuspended. You'll need to wait until at least midnight UTC.
Those settings are wrong and that’s why your having trouble logging into the Ftp account. Here’s the correct one: SFTP host: tommy.heliohost.org SFTP port: 1342 SFTP protocol: SFTP SFTP logon type: Normal SFTP Username: <same as cpanel> SFTP password: <same as cpanel>