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| CNAME | substrate.office.com |
| CNAME | outlook.office365.com |
| CNAME | ooc-g2.tm-4.office.com |
| A | 2603:1036:207:455::2🇺🇸 Microsoft |
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| A | 2603:1036:302:4156::2🇺🇸 Microsoft |
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| A | 2603:1036:302:4832::2🇺🇸 Microsoft |
| A | 2603:1036:302:4841::2🇺🇸 Microsoft |
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| A | 52.96.33.82🇺🇸 Microsoft |
| A | 52.96.87.194🇺🇸 Microsoft |
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| A | 52.96.87.226🇺🇸 Microsoft |
| A | 52.96.88.98🇺🇸 Microsoft |
| A | 52.96.109.146🇺🇸 Microsoft |
| A | 52.96.111.50🇺🇸 Microsoft |
| A | 52.97.101.194🇺🇸 Microsoft |