Emailed email@example.com as the site says to, got a failure from callplus
The following message to <firstname.lastname@example.org> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-'5.7.1 Sender ID (PRA) Not Permitted'
So yeah. I have a feeling I have been wasting my time and money with it since the client seems to have issues so often that things go into the recycle bin and need to be reuploaded when the drive is reconnected that I never actually can recall a backup actually completing.
Now I have the VDSL on snap and can upload over the $5 for 3 days offpeak, and the flatrate slingshot connection means that any online backup provider is basically zero rated I have little reason to continue with backflip other than that they have a few 100 gigs of stuff there that may (but probably may not) be a recent backup of important stuff.