Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
yale.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 01:28:25 UTC · ↺ Refresh
MX Hostnames
- yale-de.mail.protection.outlook.com
MX Priorities
- yale-de.mail.protection.outlook.com: 10
A / AAAA Records
- 204.17.197.122 (no PTR)
Mail Server IPs
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.ipmanagerinc.net tech.brandshelter.com 2026011600 10800 3600 604800 300
Primary NS (mname)
dns1.ipmanagerinc.net
Admin Email (rname)
tech@brandshelter.com
Serial
2026011600
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
dns1.ipmanagerinc.net
dns3.ipmanagerinc.net
dns2.ipmanagerinc.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:213.9.75.190 ip4:185.30.34.103 ip4:204.17.197.8 ip4:204.17.197.30 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:213.9.75.190 ip4:185.30.34.103 ip4:204.17.197.8 ip4:204.17.197.30 include:spf.protection.outlook.com -all
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