Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schmitz-karsten.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 06:39:31 UTC · ↺ Refresh
MX Hostnames
- schmitzkarsten-de01i.mail.protection.outlook.com
MX Priorities
- schmitzkarsten-de01i.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.163 ↩ 217-160-0-163.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
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1042.ui-dns.de hostmaster.1und1.com 2017060119 28800 7200 604800 600
Primary NS (mname)
ns1042.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060119
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1042.ui-dns.de
ns1044.ui-dns.org
ns1065.ui-dns.com
ns1074.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; aspf=s; adkim=s; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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
2 records- SPFv=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
- DKIMv=DKIM1; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr5xQi/BJ7CXhFvhL9LwtN5ewp/dETX1+TaWOlHE49oDA8fz0vcMD4fPp1duKWsi7FMvvllgtJJN+vmoqCX+89LG2q8OKiBm42yh2/ntI434pZAu7Pjj6C3rSJI16socDMIUtP31qPgRoWLtxpPnz3iqB16E6HbpQtGBqi5SFBvaEXznkiOC9d8Nq3MFs3lEb4IwNrCHfHN2CKVrmorUJVa8RuVjDteNECFWn2JksHU7i+XzT6PHzsyP3KBZ1smphFZwWyG3aGuI0sn795N2AYaJHeo5eQu+XHuRtLcRvdIxZCnUfeACdoHw5hZH9pDxQBjsZHhxtRu1xqQQ8gVvQGQIDAQAB
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