outlook.office.com.
substrate.office.com.
outlook.office365.com.
ooc-g2.tm-4.office.com.
2603:1036:30a:82e::2
2603:1036:30a:1828::2
2603:1036:30a:1827::2
2603:1036:30a:1800::2
2603:1036:30a:1821::2
2603:1036:30a:1826::2
2603:1036:30a:1807::2
2603:1036:30a:1801::2

mx: ooc-g2.tm-4.office.com.
mx: outlook.office365.com.
mx: outlook.office.com.
mx: substrate.office.com.
ns: ooc-g2.tm-4.office.com.
ns: outlook.ms-acdc.office.com.
ns: outlook.office365.com.
ns: outlook.office.com.
ns: substrate.office.com.
ns: yyz-efz.ms-acdc.office.com.