richert-co.de

Valid Email Server
Domain Lookup › richert-co.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
richert-co.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 04:39:32 UTC · ↺ Refresh

MX Hostnames

  • richertco-de01i.mail.protection.outlook.com

MX Priorities

  • richertco-de01i.mail.protection.outlook.com: 10

A / AAAA Records

  • 23.236.62.147 ↩ 147.62.236.23.bc.googleusercontent.com

Mail Server IPs

  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.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:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.networkinvest.net support.networkinvest.de 2025112501 39940 14400 604800 43200
Primary NS (mname)
ns1.networkinvest.net
Admin Email (rname)
support@networkinvest.de
Serial
2025112501
Refresh
39940s
Retry
14400s
Expire
604800s
Minimum TTL
43200s

Nameservers (NS)

ns1.networkinvest.net
ns3.networkinvest.net
ns2.networkinvest.net
ns4.networkinvest.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com a ip4:62.55.238.26 ip4:62.54.255.66 ip4:213.239.241.0/24 ip6:2a01:4f8:a0::/48 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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
  • MS=ms43955898
  • SPFv=spf1 include:spf.protection.outlook.com a ip4:62.55.238.26 ip4:62.54.255.66 ip4:213.239.241.0/24 ip6:2a01:4f8:a0::/48 -all
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