Not sure what's going on, but as a NC who admins more than 7 networks, this is quite alarming. Every single email sent from ning networks over the past couple of days has gone strait to my spam folder....including Creators emails and GASP...the Best of Creators for the week..
not sure if this has something to do with ning servers but if others are experiencing this it may be something to look into ning!
Also going to spam on my site.
Here is the ticket detailing the "return-path" problem, showing that it was recognised as a bug, and queued for a fix back in January 2011... It still has not been fixed.
Chris I'm experiencing the same problem with my site...did you get this issue resolved? Any suggestions? Thanks ~