radiorst.de

Valid Email Server
Domain Lookup › radiorst.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
radiorst.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 13:27:42 UTC · ↺ Refresh

MX Hostnames

  • radiorst-de.mail.protection.outlook.com

MX Priorities

  • radiorst-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 18.164.116.5 ↩ server-18-164-116-5.jfk50.r.cloudfront.net
  • 18.164.116.89 ↩ server-18-164-116-89.jfk50.r.cloudfront.net
  • 18.164.116.26
  • 18.164.116.113
  • 2600:9000:2511:a600:14:d583:9600:93a1
  • 2600:9000:2511:b400:14:d583:9600:93a1
  • 2600:9000:2511:1600:14:d583:9600:93a1
  • 2600:9000:2511:5200:14:d583:9600:93a1
  • 2600:9000:2511:c200:14:d583:9600:93a1
  • 2600:9000:2511:6200:14:d583:9600:93a1
  • 2600:9000:2511:1800:14:d583:9600:93a1
  • 2600:9000:2511:6600:14:d583:9600:93a1

Mail Server IPs

  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ 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
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns-345.awsdns-43.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-345.awsdns-43.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1748.awsdns-26.co.uk
ns-345.awsdns-43.com
ns-833.awsdns-40.net
ns-1125.awsdns-12.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:81.89.246.0/24 ip4:91.26.46.115 include:spf.protection.outlook.com include:amazonses.com -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
  • SPFv=spf1 ip4:81.89.246.0/24 ip4:91.26.46.115 include:spf.protection.outlook.com include:amazonses.com -all
  • MS=ms12179008
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