I'm also getting the same error on the Create a new revision to make changes.
I cannot find a work around so I can't complete the monthly updates to my site.
Sorry all, this was my fault, I was trying some new firewall rules to block some overzealous web robots that have been thrashing Voice heavily for a few days, and unfortunately it blocked a few valid URLs too.
It's now resolved so you can now able to edit as normal again!
Thanks
Joe
(the robots were generating around eight million spurious hits to Voice every day, so I was keen to reduce this!)
Many thanks, Joe. I can now use the time over the holiday to build up our site!
Enjoy Christmas and the new Year!
thank you Joe
them there robots should be sent decommissioned at will...
i can report that it is all functioning again on my end, with the exception of the email debacle as you are aware of