Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
otto-keller.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 16:01:03 UTC · ↺ Refresh
MX Hostnames
- ottokeller-de01b.mail.protection.outlook.com
MX Priorities
- ottokeller-de01b.mail.protection.outlook.com: 0
A / AAAA Records
- 85.13.128.98 ↩ dd46700.kasserver.com
Mail Server IPs
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.bxweb01.betex.de service.betex.de 2024111104 1200 1800 604800 3600
Primary NS (mname)
ns.bxweb01.betex.de
Admin Email (rname)
service@betex.de
Serial
2024111104
Refresh
1200s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.bxweb01.betex.de
ns2.bxweb01.betex.de
SPF Record
✓ Strict (-all)
v=spf1 a ip4:217.92.135.236 ip4:185.55.75.177 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; fo=1; ri=259200
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- MS=ms56301791
- google-site-verification=iY8nzF_-mvhMlZq6ZOL_yR7lz-HvhzZM2Eb1cd0LS5g
- SPFv=spf1 a ip4:217.92.135.236 ip4:185.55.75.177 include:spf.protection.outlook.com -all
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