Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
o-s.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 19:07:41 UTC · ↺ Refresh
MX Hostnames
- mailin.ng.telekom.net
MX Priorities
- mailin.ng.telekom.net: 100
A / AAAA Records
- 139.1.144.170 ↩ fraoswx00004.os-fra.de
Mail Server IPs
- 3.126.204.238 ↩ ec2-3-126-204-238.eu-central-1.compute.amazonaws.com
- 3.71.246.67 ↩ ec2-3-71-246-67.eu-central-1.compute.amazonaws.com
SOA Record
Raw SOA
pns.dtag.de dns.telekom.de 2026022300 10800 3600 2419200 3600
Primary NS (mname)
pns.dtag.de
Admin Email (rname)
dns@telekom.de
Serial
2026022300
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns1.telekom.net
pns.dtag.de
SPF Record
✓ Strict (-all)
v=spf1 a:mx1.osnow.de ip4:139.1.147.20 ip4:139.1.154.36 ip4:139.1.154.85 include:spf.mailjet.com include:spf.protection.outlook.com include:_spft.telekom.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- cLxU19JBvEUOXXX58zK634zB3AnY+UkiyFIgXx6oxllMNB7u6+4gP5ohuOt+Kuo49gpPeX9h1IJvG01cJPvQ7A==
- SPFv=spf1 a:mx1.osnow.de ip4:139.1.147.20 ip4:139.1.154.36 ip4:139.1.154.85 include:spf.mailjet.com include:spf.protection.outlook.com include:_spft.telekom.com -all
- MS=ms94094627
- figma-domain-verification=adbe2dd4629ce6cbaea3e01b0090004d9818ff36fcd87b26fd0e4eb906d730b8-1770801719
- webexdomainverification.BSJE=ab8c860-3310-4f97-90b8-e73c2e845065
- _telesec-domain-validation=291971_2021-06-08_5a3ozzQnBtOLji4dHnKy3DQlsM1dUTGLPzHV1QxtDTexLdr61P
- _telesec-domain-validation=289752_2021-05-08_lT5jqUK0DinJ6CLLXFCjjm8aeRrM2FvxOzuc4BPFemyR27PZfv
- _telesec-domain-validation=349068_2025-05-09_KEHk01BOSFq81qa64AHNkPMruJPXrAAVDOAfaeOoRb0HHpPkGc
- ciscocidomainverification=5f53d78f5f2430628b7fc8b5fc5916d1f352747b37a5b3e584a2d614905db833
- _telesec-domain-validation=320049_2023-05-11_yvSeQruEsbiNzif00Y15qmn2mURSXDc63FVSkZnbHoAvaEAktj
- adobe-idp-site-verification=22f64faf827865075c1f3f1d814848b67f1e2ebe012796f5b958a206affdcbeb
- t7aqkTsZWnl0rX3q+iyh2/kD81TzObQOodtx4JH3nez6aKGTHDgPAeiAj2arEsZ5e+/npP7xXGfxEQHh4refUA==
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