Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
studieninstitut.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 12:28:51 UTC · ↺ Refresh
MX Hostnames
- studieninstitut-de.mail.protection.outlook.com
MX Priorities
- studieninstitut-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.113.41.42 (no PTR)
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
master.domainkunden.de hostmaster.domainkunden.de 2025032801 28800 7200 604800 300
Primary NS (mname)
master.domainkunden.de
Admin Email (rname)
hostmaster@domainkunden.de
Serial
2025032801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1.domainkunden.de
ns2.domainkunden.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com a mx ip4:217.113.36.97 ip4:217.113.36.99 ip4:217.113.45.225 ip4:217.113.36.106 ip4:185.60.208.33 a:spf.crsend.com a:spf.nl2go.com a:servers.mcsv.net -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- MS=ms71400315
- SPFv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com a mx ip4:217.113.36.97 ip4:217.113.36.99 ip4:217.113.45.225 ip4:217.113.36.106 ip4:185.60.208.33 a:spf.crsend.com a:spf.nl2go.com a:servers.mcsv.net -all
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