Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
karlschnell.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 13:33:37 UTC · ↺ Refresh
MX Hostnames
- mail.karlschnell.de
- karlschnell-de.mail.protection.outlook.com
- mail1.karlschnell.de
MX Priorities
- karlschnell-de.mail.protection.outlook.com: 100
- mail1.karlschnell.de: 1
- mail.karlschnell.de: 20
A / AAAA Records
- 87.230.41.40
Mail Server IPs
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 5.7.209.66 ↩ mail1.karlschnell.de
- 5.7.209.67 ↩ mail.karlschnell.de
SOA Record
Raw SOA
ns23.domaincontrol.com dns.jomax.net 2026032301 28800 7200 604800 600
Primary NS (mname)
ns23.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns23.domaincontrol.com
ns24.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 a:mail.karlschnell.de a:mail1.karlschnell.de ip4:5.7.209.66 ip4:5.7.209.67 include:spf.protection.outlook.com mx include:spf.cloud.ci-solution.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
dkim._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
3 records- SPFv=spf1 a:mail.karlschnell.de a:mail1.karlschnell.de ip4:5.7.209.66 ip4:5.7.209.67 include:spf.protection.outlook.com mx include:spf.cloud.ci-solution.com -all
- MS=ms46528986
- mEQ/r2+91BM3WejTF8MD5MTUDHGnvJrKhkdKGcljvEX4uyvg7XuiJEo1mP5AKTC1RN/+pHvxEzbImdmV4F1nDg==
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