Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
frosta.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 00:29:32 UTC · ↺ Refresh
MX Hostnames
- frosta-de.mail.protection.outlook.com
MX Priorities
- frosta-de.mail.protection.outlook.com: 0
A / AAAA Records
- 13.80.99.129 (no PTR)
Mail Server IPs
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.udag.de hostmaster.united-domains.de 2024083618 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2024083618
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.udag.org
ns.udag.net
ns.udag.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com a:mars.frosta.de ip4:57.153.7.187 ip4:195.145.182.230 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
5 records- SPFv=spf1 include:spf.protection.outlook.com include:mail.zendesk.com a:mars.frosta.de ip4:57.153.7.187 ip4:195.145.182.230 -all
- brevo-code:6f890f58a42028db931a52febc34c789
- docusign=44dbb5b1-abc9-431e-b025-c42782426b74
- Q6kLvpTkKVcUY84ukHS60x+WtMeV6XzOF27Rg2BqZRwoF1mRvrMCtMf16ex6iTUSIbODnp8wsIk96qluMdIijQ==
- e8248e17845199dff511ff12d974c3784f4eb3e4861d87acfeacf619e1e24fb
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