Rebuilding data did not work , actually worked once then crashed to "out of memory" again.

Which is what is has been doing off and on , failing more than actually working.

Just surprised that with all the issues I see with this error online , that this does not have a solid fix yet.

It is a great feature , many customer are requesting email invoices and it just does not work anymore. It was great for a few years, I believe it started with a QB update . Not sure exactly when , just have no time to mess with it. Definitely no time to call and troubleshoot it over the phone , at the moment , this is taking up enough already. Hope you figure it out soon....