Yes — outtlook.cam has IPv6.

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

Measured 2026-11-06 14:33 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check outtlook.cam now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 outtlook.cam has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:9023 answers · 443✓ 2606:4700:3036::6815:3719 answers · 443	yes
www over IPv6 www.outtlook.cam has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::6815:3719 answers · 443✓ 2606:4700:3033::ac43:9023 answers · 443	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 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ainsley.ns.cloudflare.com ✓dakota.ns.cloudflare.com ✓	yes

First measured 2026-11-06; last confirmed 2026-11-06.

HTTPS over IPv6 · not part of the grade yet
outtlook.cam didn't complete an HTTPS request over IPv6 (timed out).

https://outtlook.cam/ via 2606:4700:3033::ac43:9023 · timed out

Nothing keeping you from an A

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

Check again

outtlook.cam Has IPv6

A (IPv4)	104.21.55.25 172.67.144.35
AAAA (IPv6)	2606:4700:3033::ac43:9023 2606:4700:3036::6815:3719

www.outtlook.cam Has IPv6

A (IPv4)	104.21.55.25 172.67.144.35
AAAA (IPv6)	2606:4700:3036::6815:3719 2606:4700:3033::ac43:9023

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: outtlook.cam
Measured 2026-11-06 14:33:48 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.55.25, 172.67.144.35
AAAA (IPv6): 2606:4700:3033::ac43:9023, 2606:4700:3036::6815:3719
www AAAA:    2606:4700:3036::6815:3719, 2606:4700:3033::ac43:9023

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: outtlook.cam has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::ac43:9023: answers (TCP 443)
    2606:4700:3036::6815:3719: answers (TCP 443)
- www over IPv6: www.outtlook.cam has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::6815:3719: answers (TCP 443)
    2606:4700:3033::ac43:9023: answers (TCP 443)
- 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: 2 of 2 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): outtlook.cam didn't complete an HTTPS request over IPv6 (timed out).
    https://outtlook.cam/ via 2606:4700:3033::ac43:9023, certificate: valid (timed out)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/tSDZrqSv0Y

Permanent link: aaaa.bot/r/tSDZrqSv0Y · How we measure

Checked 2026-11-06 14:33:48 UTC. Full DNS report: dns.pizza/domain/outtlook.cam · Age, certificate and blocklists: how.is/outtlook.cam · JSON: /api/v1/outtlook.cam