Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdk.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 12:50:00 UTC · ↺ Refresh
MX Hostnames
- sdk-de.mail.protection.outlook.com
- mail.sdk.de
MX Priorities
- sdk-de.mail.protection.outlook.com: 0
- mail.sdk.de: 50
A / AAAA Records
- 185.241.34.230 (no PTR)
- 2a06:2380:2:1::20 ↩ static-2a06-2380-2-1-20.ipv6.gridserver.io
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 94.186.231.45 ↩ mail.sdk.de
SOA Record
Raw SOA
a.ns14.net systementwicklung.sdk.de 2025120416 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
systementwicklung@sdk.de
Serial
2025120416
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
d.ns14.net
b.ns14.net
c.ns14.net
a.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:94.186.231.45 ip4:94.186.231.34 ip4:157.90.98.89 ip4:212.34.64.185 include:_spf.senders.scnem.com include:spf.protection.outlook.com include:aspmx.pardot.com include:spf.mailjet.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; ri=604800
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
14 records- google-site-verification=a1mA40duGtkROxr5rNJi4WPXuH8DSARXrDF1JErm8Bo
- MS=ms61895226
- /zOqjswglg+qcU0rrQts03aJKTL4uqFG8dpRC2SWr7DuBl4YGqVcYUOJvd5sZswF9jgkp9Kbk+9cA6hiNxzmJw==
- apple-domain-verification=OoCWCnAGE22JlbvC
- adobe-idp-site-verification=10eaea7c7bd3ec727a130d61a801aa39d59157b263e070790c22a7b7dce78da4
- swisssign-check=xxQ_Ap4UsR4RuQ97Ywy2zAiSkg0
- miro-verification=f53b6ba40374104350316efb2ddc37d5ec52336d
- teamviewer-sso-verification=55c97a54399b478d89d2fb82887209d9
- pardot805293=9f53bf311294b5f2c8b06a107b144a4d5009b516aa88f218814f4b8c2c0561d5
- mentimeter-69cfc47d-2da2-4bf8-acc0-cc7208454d3a
- atlassian-domain-verification=9bvRfLV1CNmEh3NWt3WrDgMYOc/odZE8kxMsnHDaW6SwQjPwUYSWMDlQ0paFiFdY
- ZOOM_verify_RwufLwHo01XBSrch4r4IZU
- MS=ms26407688
- SPFv=spf1 mx ip4:94.186.231.45 ip4:94.186.231.34 ip4:157.90.98.89 ip4:212.34.64.185 include:_spf.senders.scnem.com include:spf.protection.outlook.com include:aspmx.pardot.com include:spf.mailjet.com include:spf-de.emailsignatures365.com -all
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