Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdx-ag.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 00:00:04 UTC · ↺ Refresh
MX Hostnames
- sdxag-de0i.mail.protection.outlook.com
MX Priorities
- sdxag-de0i.mail.protection.outlook.com: 1
A / AAAA Records
- 217.160.0.165 ↩ 217-160-0-165.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1057.ui-dns.de hostmaster.1and1.com 2017041389 28800 7200 604800 300
Primary NS (mname)
ns1057.ui-dns.de
Admin Email (rname)
hostmaster@1and1.com
Serial
2017041389
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1057.ui-dns.org
ns1057.ui-dns.biz
ns1057.ui-dns.com
ns1057.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:spf.crsend.com ip4:92.50.126.230 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
mail._domainkey
k1._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
13 records- ms-domain-verification=ff8b51b1-74ce-4f96-9ede-6e29dc1d3901
- apple-domain-verification=AIrnyV0Bb2E3kpUG
- google-site-verification=xH2z5Awd5noEknFAXrStVuEigKEYd_gsBZRsWxJ2Ysw
- MS=ms75168508
- 6ih9eo313vn4234m8e4rc92l8f
- ms-domain-verification=29fcb60f-5958-4631-bb5f-da7348755b49
- MS=ms71004368
- SPFv=spf1 a mx include:spf.protection.outlook.com include:spf.crsend.com ip4:92.50.126.230 -all
- Sendinblue-code:1bc31a44336ad1c4c1ec803aa797381e
- tjbi0gblb6b08so5c66p3vo0ut
- 753EC1F29FECF0B24FCCD7654DA6C4C9C2BEBBCE7141B520A3C4758DFEC74E0D
- p5j4c6jn9s0ss4ujpsvfjscobb
- U6VAIgketrfK6BAUh2ewzQk+AoFC7V6K9IyQ43vT
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