I think dark forces and cache monsters are wanting to rip my face off
It will work... for a bit
and then bam, back to this message:
The most recent request was denied because it contained an invalid security token. Please refresh the page and try again.
So far,
I have removed an email address being listed twice in send to
I have turned off 'System Plugin Cache'
I have cleared cache on server
I have got a stranger on a train to look at site and still receive error message