Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rrp.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 21:15:47 UTC · ↺ Refresh
MX Hostnames
- rrp-de.mail.protection.outlook.com
MX Priorities
- rrp-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.166 ↩ 217-160-0-166.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1041.ui-dns.de hostmaster.schlund.de 2017052210 28800 7200 604800 300
Primary NS (mname)
ns1041.ui-dns.de
Admin Email (rname)
hostmaster@schlund.de
Serial
2017052210
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1041.ui-dns.com
ns1041.ui-dns.biz
ns1041.ui-dns.org
ns1041.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 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
2 records- MS=ms88904949
- SPFv=spf1 include:spf.protection.outlook.com -all
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