Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rgth.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 09:44:10 UTC · ↺ Refresh
MX Hostnames
- rgth-de.mail.protection.outlook.com
MX Priorities
- rgth-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.65 ↩ 217-160-0-65.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2ea ↩ 2001-08d8-100f-f000-0000-0000-0000-02ea.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1083.ui-dns.com hostmaster.1und1.de 2017041227 28800 7200 604800 300
Primary NS (mname)
ns1083.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017041227
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1083.ui-dns.com
ns1083.ui-dns.biz
ns1083.ui-dns.de
ns1083.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100
✓ 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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
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