Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
alma-mater.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 04:32:24 UTC · ↺ Refresh
MX Hostnames
- almamater-de01b.mail.protection.outlook.com
MX Priorities
- almamater-de01b.mail.protection.outlook.com: 10
A / AAAA Records
- 149.232.252.3 ↩ redirect.ingenit.com
Mail Server IPs
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-eu.123ns.eu hostmaster.123ns.eu 2024103000 86400 7200 3600000 86400
Primary NS (mname)
ns1-eu.123ns.eu
Admin Email (rname)
hostmaster@123ns.eu
Serial
2024103000
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns4-eu.123ns.de
ns1-eu.123ns.eu
ns3-eu.123ns.eu
ns2-eu.123ns.de
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
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
✓ 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
2 records- SPFv=spf1 -all
- MS=ms46448828
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