Yes — m.hotmail.com has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 m.hotmail.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested). ✓ 2603:1036:302:4154::2 answers · 443✓ 2603:1036:302:415b::2 answers · 443✓ 2603:1036:302:415c::2 answers · 443✓ 2603:1036:302:415d::2 answers · 443– 2603:1036:302:4823::2 not tested– 2603:1036:302:4836::2 not tested– 2603:1036:207:457::2 not tested– 2603:1036:302:40e0::2 not tested	yes
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.	yes
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns1-205.azure-dns.com ✓ns2-205.azure-dns.net ✓ns3-205.azure-dns.org ✓ns4-205.azure-dns.info ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 417.

https://m.hotmail.com/ via 2603:1036:302:4154::2 → 301https://m.hotmail.com/mail/ via 2603:1036:302:4154::2 → 417

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/m.hotmail.com.svg)](https://aaaa.bot/m.hotmail.com)

Check again

m.hotmail.com Has IPv6

Alias of	eas.outlook.com → outlook.office365.com → outlook.cloud.microsoft → acdcatm.outlook.mira.tm.svc.cloud.microsoft → atm.outlook.mira.tm.svc.cloud.microsoft
A (IPv4)	52.97.101.178 40.104.47.194 52.96.87.242 52.96.88.114 52.96.109.194 52.96.111.2 52.96.111.34 52.96.242.18
AAAA (IPv6)	2603:1036:302:4154::2 2603:1036:302:415b::2 2603:1036:302:415c::2 2603:1036:302:415d::2 2603:1036:302:4823::2 2603:1036:302:4836::2 2603:1036:207:457::2 2603:1036:302:40e0::2

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: m.hotmail.com
Measured 2026-11-02 11:46:06 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    52.97.101.178, 40.104.47.194, 52.96.87.242, 52.96.88.114, 52.96.109.194, 52.96.111.2, 52.96.111.34, 52.96.242.18
AAAA (IPv6): 2603:1036:302:4154::2, 2603:1036:302:415b::2, 2603:1036:302:415c::2, 2603:1036:302:415d::2, 2603:1036:302:4823::2, 2603:1036:302:4836::2, 2603:1036:207:457::2, 2603:1036:302:40e0::2

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: m.hotmail.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
    2603:1036:302:4154::2: answers (TCP 443)
    2603:1036:302:415b::2: answers (TCP 443)
    2603:1036:302:415c::2: answers (TCP 443)
    2603:1036:302:415d::2: answers (TCP 443)
    2603:1036:302:4823::2: not tested
    2603:1036:302:4836::2: not tested
    2603:1036:207:457::2: not tested
    2603:1036:302:40e0::2: not tested
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.
- Nameservers have IPv6: 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 417.
    https://m.hotmail.com/ via 2603:1036:302:4154::2 -> HTTP 301, certificate: valid
    https://m.hotmail.com/mail/ via 2603:1036:302:4154::2 -> HTTP 417, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/wRsi4EUHta

Permanent link: aaaa.bot/r/wRsi4EUHta · How we measure

Checked 2026-11-02 11:46:06 UTC. Full DNS report: dns.pizza/domain/m.hotmail.com · JSON: /api/v1/m.hotmail.com