smtp.orange.fr publishes IPv6 but doesn't answer on it.

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

F
IPv6 readiness
Publishes IPv6 but doesn't answer on it — worse than having none.
Website over IPv6
smtp.orange.fr has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
✗ 2a01:cb09:2040:8:b::4 no answer✗ 2a01:cb08:2040:3:a::4 no answer
broken
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.
ns2.orange.fr ✓ns1.orange.fr ✓
yes
 Load smtp.orange.fr over IPv6 from up to six other places — a second opinion.

What's keeping smtp.orange.fr from an A

  1. Fix or remove the AAAA record for smtp.orange.fr
    Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.

Check again

smtp.orange.fr  Has IPv6

A (IPv4)80.12.26.33
80.12.24.65
AAAA (IPv6)2a01:cb09:2040:8:b::4
2a01:cb08:2040:3:a::4

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

 Permanent link: aaaa.bot/r/eLVYyNPe4q · How we measure

Checked 2026-11-01 02:56:15 UTC. Full DNS report: dns.pizza/domain/smtp.orange.fr · JSON: /api/v1/smtp.orange.fr