TY - RPRT TI - Domain name system-based electronic mail security AU - Rose, Scott AU - Barker, William AU - Jha, Santos AU - Irrechukwu, Chinedum AU - Waltermire, Karen PY - 2017 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 1800-6 DO - 10.6028/NIST.SP.1800-6 ER -