config LEMUR_MAIL to LEMUR_EMAIL (#772)
config LEMUR_MAIL to LEMUR_EMAIL (#772)

I referenced https://github.com/Netflix/lemur/blob/master/lemur/plugins/lemur_email/plugin.py and it appears this configuration option should be "LEMUR_EMAIL"
kevgliss/lemur,Netflix/lemur,Netflix/lemur,Netflix/lemur,kevgliss/lemur,kevgliss/lemur,Netflix/lemur