r-f.de

Valid Email Server
Domain Lookup › r-f.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
r-f.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-04 11:04:12 UTC · ↺ Refresh

MX Hostnames

  • mail-1.r-f.de

MX Priorities

  • mail-1.r-f.de: 5

A / AAAA Records

  • 93.122.75.58 (no PTR)

Mail Server IPs

  • 93.122.75.16 ↩ mail-1.r-f.de

SOA Record

Raw SOA ns1.r-f.de hostmaster.r-f.de 2026033103 86400 10800 3600000 86400
Primary NS (mname)
ns1.r-f.de
Admin Email (rname)
hostmaster@r-f.de
Serial
2026033103
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns1.r-f.de
secondary006.dtag.net
ns5.fis-asp.de
pns.dtag.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:93.122.75.0/26 include:spf.protection.outlook.com include:spf.go-2b-planer.de include:_spf-dc55.sapsf.eu include:amazonses.com include:spf.brevo.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No 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

7 records
  • successfactors-site-verification=N2YyMDRmMGQ1OTA5OWY3ZTY0NWQ4NGRhMmZmYmRkOTBkNGRkOWQ5MjFiYzU1MTE3NDkyZTUyYTRiNTE3YTNjZA==
  • atlassian-domain-verification=gSuQZP4aaaBudYwb1QNxO1Pr8Q1oV6gTUoUB8nb8DwF2scaaC/NvKEm1XMrZpcJU
  • cisco-ci-domain-verification=3bd6530d02a48c547d0cde104fdb6530e5c18269c9e84343d56bd081dba60191
  • apple-domain-verification=orIjH55HCZVShcqI
  • brevo-code:c48a6eb462daf21c2295835029c1aef5
  • SPFv=spf1 ip4:93.122.75.0/26 include:spf.protection.outlook.com include:spf.go-2b-planer.de include:_spf-dc55.sapsf.eu include:amazonses.com include:spf.brevo.com -all
  • MS=ms65920473
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