mail.bultmann.net - robtex.com

mail.bultmann.net

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:d076🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:171d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.23.29Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.208.118🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.23.29, 172.67.208.118
IPv6 hints2606:4700:3031::ac43:d076, 2606:4700:3037::6815:171d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com

bultmann.net

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:d076🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:171d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.23.29Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.208.118🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjohnathan.ns.cloudflare.com ⭐
NSmaisie.ns.cloudflare.com
MXmail.bultmann.net ⭐
MXmxe9ef.netcup.net(50)
TXT7310a1f4-a0d5-4d1c-8755-aca6bf4ec497
TXTv=spf1 mx a include:_spf.webhosting.systems ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.23.29, 172.67.208.118
IPv6 hints2606:4700:3031::ac43:d076, 2606:4700:3037::6815:171d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com
SOAjohnathan.ns.cloudflare.comdns@cloudflare.com serial=2403660442

MX for

bultmann.net

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DNS History

4 records (4 active, 0 former)

A104.21.23.29172.67.208.1182606:4700:3031::ac43:d0762606:4700:3037::6815:171d
●A104.21.23.292026-05-12 → 2026-05-13 · 2 obs
● 2026-05-12 07:02:16
● 2026-05-13 12:43:52
●A172.67.208.1182026-05-12 → 2026-05-13 · 2 obs
● 2026-05-12 07:02:16
● 2026-05-13 12:43:52
●A2606:4700:3031::ac43:d0762026-05-12 → 2026-05-13 · 2 obs
● 2026-05-12 07:02:16
● 2026-05-13 12:43:52
●A2606:4700:3037::6815:171d2026-05-12 → 2026-05-13 · 2 obs
● 2026-05-12 07:02:16
● 2026-05-13 12:43:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netd.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net...-
bultmann.netmaisie.ns.cloudflare.com, johnathan.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.44

NS records: maisie.ns.cloudflare.com, johnathan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bultmann.net (unsigned zone)

⏱️ Timing

Total: 961ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.23.29, 172.67.208.118
AAAA22606:4700:3037::6815:171d, 2606:4700:3031::ac43:d076
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

Mail Server Role

The mail server for bultmann.net is mail.bultmann.net.

For mail handling, mxe9ef.netcup.net serves as a mail server together with mail.bultmann.net.

IP Addresses

mail.bultmann.net points to four IP numbers: 2606:4700:3031::ac43:d076, 2606:4700:3037::6815:171d, 104.21.23.29 and 172.67.208.118.

Other host names, for instance damian.codes, karotter.com, notamusic.net, agh.bfklordfilm.ru and bijstox.com share IP numbers with mail.bultmann.net.