I do not believe it is possible anymore to export email addresses from forumotion boards using traditional scripts. I'm able to do it, but I use a special technique that I will never post in public nor provide to anyone else. It's, well, outside-the-box...and I don't want eToxic finding a way to prevent it. It's also not free.
My suggestion is to modify nneonneo's script to stop trying to export email addresses, and instead have it generate a null email address (something like firstname.lastname@example.org
) for all users. Once this is done, the script should run fine (albeit slowly due to countless HTTP 503 errors added by eToxic).
Every user will need to change their password anyway, so it's not a big deal to have them change their email address at the same time.