fix empty emails issue
fix empty emails issue

CenterForOpenScience/scrapi,alexgarciac/scrapi,erinspace/scrapi,jeffreyliu3230/scrapi,felliott/scrapi,erinspace/scrapi,mehanig/scrapi,fabianvf/scrapi,mehanig/scrapi,fabianvf/scrapi,CenterForOpenScience/scrapi,felliott/scrapi