stb.de

Valid Email Server
Domain Lookup › stb.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stb.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-04 19:57:20 UTC · ↺ Refresh

MX Hostnames

  • stb-de.mail.protection.outlook.com

MX Priorities

  • stb-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 46.30.61.198 ↩ r17559.agenturserver.it
  • 2a03:2a00:1200:2::ac14:15e3 ↩ r17559.agenturserver.it

Mail Server IPs

  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA hydrogen.ns.hetzner.com dns.hetzner.com 2026040309 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026040309
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
helium.ns.hetzner.de

SPF Record

✓ Strict (-all)
v=spf1 a mx ptr include:spf.protection.outlook.com include:agenturserver.de include:spf.crsend.com include:_spf.zimpel.de include:spf.easyticket.de ip4:46.30.61.198 ip6:2a03:2a00:1200:0:1::3944 -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 a mx ptr include:spf.protection.outlook.com include:agenturserver.de include:spf.crsend.com include:_spf.zimpel.de include:spf.easyticket.de ip4:46.30.61.198 ip6:2a03:2a00:1200:0:1::3944 -all
  • mentimeter-58b21e14-80cf-47fc-8381-c80a18708d1b
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