Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
salvator-kolleg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 17:25:45 UTC · ↺ Refresh
MX Hostnames
- salvatorkolleg-de02b.mail.protection.outlook.com
MX Priorities
- salvatorkolleg-de02b.mail.protection.outlook.com: 20
A / AAAA Records
- 217.160.0.251 ↩ 217-160-0-251.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
docks07.rzone.de hostmaster.strato-rz.de 2020050764 86400 7200 604800 300
Primary NS (mname)
docks07.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050764
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades09.rzone.de
docks07.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com mx ip4:91.26.64.229 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ 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- 202411040948321zmmn6lxm4nbbv78p6z9rwlcjtoyk7wc1g2o5fp4vbq9diopyw
- SPFv=spf1 include:spf.protection.outlook.com mx ip4:91.26.64.229 -all
- zone-ownership-verification-bbb173691ec47729f8bab70fc06a60dfb525b9412dcf69ce3cdb6c723dbdc604
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