gsf.de

Valid Email Server
Domain Lookup › gsf.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gsf.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-27 13:05:36 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA dnsx1.helmholtz-muenchen.de domains.helmholtz-muenchen.de 4190426556 1200 600 604800 300
Primary NS (mname)
dnsx1.helmholtz-muenchen.de
Admin Email (rname)
domains@helmholtz-muenchen.de
Serial
4190426556
Refresh
1200s
Retry
600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

dns-3.dfn.de
dnsx2.helmholtz-muenchen.de
dns-1.dfn.de
dnsx1.helmholtz-muenchen.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.helmholtz-munich.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

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

2 records
  • SPFv=spf1 include:spf.helmholtz-munich.de ~all
  • MS=ms60366626
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