Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tu-freiberg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 16:52:19 UTC · ↺ Refresh
MX Hostnames
- mailgateway.hrz.tu-freiberg.de
MX Priorities
- mailgateway.hrz.tu-freiberg.de: 5
A / AAAA Records
- 139.20.200.76 ↩ maps.tu-freiberg.de
Mail Server IPs
- 139.20.200.175 ↩ mailgateway.hrz.tu-freiberg.de
SOA Record
Raw SOA
edns1.hrz.tu-freiberg.de hostmaster.tu-freiberg.de 1199 10800 3600 2419200 900
Primary NS (mname)
edns1.hrz.tu-freiberg.de
Admin Email (rname)
hostmaster@tu-freiberg.de
Serial
1199
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
edns2.hrz.tu-freiberg.de
edns1.hrz.tu-freiberg.de
dns-3.dfn.de
dns-1.dfn.de
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=_spf.tu-freiberg.de
📊 DNS lookups: 1/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
5 records- HARICA-DUPxRHsMYlffRmxzfng
- SPFv=spf1 redirect=_spf.tu-freiberg.de
- sophos-domain-verification=b704e365621b5c4ef05b59dc33f1f1f03edb0454facd088e003977d51a7c08d7
- MS=ms48197277
- adobe-idp-site-verification=a18761e87b6dea07c777e8e3c31f1de92eaeea79d4d96c5aff5e0c6902991380
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