Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usd.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 00:17:57 UTC · ↺ Refresh
MX Hostnames
- mail4.usd.de
- ms36138564.msv1.invalid
- usd-de.mail.protection.outlook.com
- mail1.usd.de
MX Priorities
- mail4.usd.de: 20
- usd-de.mail.protection.outlook.com: 0
- mail1.usd.de: 10
- ms36138564.msv1.invalid: 32767
A / AAAA Records
- 82.98.104.253
Mail Server IPs
- 82.98.105.129 ↩ mail4.usd.de
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 212.19.54.35 ↩ mail1.usd.de
- 2a02:2e0:41e:2500::35
SOA Record
Raw SOA
ns.plusline.de hostmaster.plusline.de 2026032001 10800 3600 604800 3600
Primary NS (mname)
ns.plusline.de
Admin Email (rname)
hostmaster@plusline.de
Serial
2026032001
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.plusline.de
ns.s.plusline.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.19.54.35 ip4:82.98.105.129 ip6:2a02:2e0:41e:2500::35 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 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 ip4:212.19.54.35 ip4:82.98.105.129 ip6:2a02:2e0:41e:2500::35 include:spf.protection.outlook.com -all
- eAtyB4BnIAK4Rinyv1OrfxsV6hm/qpoeASrq3ZP4LEz9dxRIiNmIbQs+98L+SnuCcbrjhKCLwDFZd2V9cdPeug==
- swisssign-check=27fHLedBhIjO-Uo2PIDhFh06j9k
- google-site-verification=z_3_UnQAGGczXrrEJVsCeMQ7vfMja-2qi3cG2h5cHls
- atlassian-domain-verification=KZOl3kWO11TWR/G8x3PS8f8vNheSO6tivDL+XRoUTQxlGdYiBuTtSgIcEwk1zTOL
Full email verification for usd.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits