cs.uni-frankfurt.de

Valid Email Server
Domain Lookup › cs.uni-frankfurt.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cs.uni-frankfurt.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 19:47:20 UTC · ↺ Refresh

MX Hostnames

  • smtp-relay2.informatik.uni-frankfurt.de
  • smtp-relay.informatik.uni-frankfurt.de

MX Priorities

  • smtp-relay2.informatik.uni-frankfurt.de: 10
  • smtp-relay.informatik.uni-frankfurt.de: 10

A / AAAA Records

  • 141.2.1.148 ↩ www.informatik.uni-frankfurt.de

Mail Server IPs

  • 141.2.1.3 ↩ hermes.rbi.informatik.uni-frankfurt.de
  • 141.2.1.4 ↩ helios.rbi.informatik.uni-frankfurt.de

SOA Record

Raw SOA hera.rbi.informatik.uni-frankfurt.de dns.cs.uni-frankfurt.de 2025111101 10800 3600 3000000 86400
Primary NS (mname)
hera.rbi.informatik.uni-frankfurt.de
Admin Email (rname)
dns@cs.uni-frankfurt.de
Serial
2025111101
Refresh
10800s
Retry
3600s
Expire
3000000s
Minimum TTL
86400s

Nameservers (NS)

helios.informatik.uni-frankfurt.de
hera.informatik.uni-frankfurt.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:141.2.1.1 ip4:141.2.1.3 ip4:141.2.1.4 ip4:141.2.4.18 ip4:141.2.7.4 ip4:141.2.13.140 ip4:141.2.3.252 ip4:141.2.1.132 ip4:141.2.11.52 ip4:141.2.10.1 include:uni-frankfurt.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

3 records
  • MS=48CB13EE6104555020C9F4B4CD9A6F6D7CB2CD4A
  • google-site-verification=dft835_oMvd8nxqHU5V1OtqKrycW7exs0gEED5RueZY
  • SPFv=spf1 ip4:141.2.1.1 ip4:141.2.1.3 ip4:141.2.1.4 ip4:141.2.4.18 ip4:141.2.7.4 ip4:141.2.13.140 ip4:141.2.3.252 ip4:141.2.1.132 ip4:141.2.11.52 ip4:141.2.10.1 include:uni-frankfurt.de ~all
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