dap.rwth-aachen.de

Valid Email Server
Domain Lookup › dap.rwth-aachen.de

Domain Overview

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

Checked via [email protected] · 2026-03-31 10:15:34 UTC · ↺ Refresh

MX Hostnames

  • mx1.rz.rwth-aachen.de

MX Priorities

  • mx1.rz.rwth-aachen.de: 1332

A / AAAA Records

  • 137.226.107.68 ↩ www.rwth-aken.biz
  • 2a00:8a60:450::107:68 ↩ www.scc.rwth-aachen.de

Mail Server IPs

  • 137.226.78.57 ↩ mx1.rz.rwth-aachen.de

SOA Record

Raw SOA zs1.rz.rwth-aachen.de hostmaster.rwth-aachen.de 2026033003 10800 3600 3600000 600
Primary NS (mname)
zs1.rz.rwth-aachen.de
Admin Email (rname)
hostmaster@rwth-aachen.de
Serial
2026033003
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
600s

Nameservers (NS)

zs2.rz.rwth-aachen.de
dns-1.dfn.de
dns-2.dfn.de
zs1.rz.rwth-aachen.de

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.itc.rwth-aachen.de include:spf.brevo.com mx -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 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

4 records
  • brevo-code:12419822532ee108db41e8e2e9b81ee8
  • brevo-code:7207417c0702744eef0fe88f28354807
  • anny-verification=e7f148b6-9900-4f8c-9396-f0d2771099d3
  • SPFv=spf1 include:_spf.itc.rwth-aachen.de include:spf.brevo.com mx -all
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