fs.ei.tum.de

Valid Email Server
Domain Lookup › fs.ei.tum.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fs.ei.tum.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-25 09:13:34 UTC · ↺ Refresh

MX Hostnames

  • mailrelay2.lrz.de
  • mailrelay1.lrz.de

MX Priorities

  • mailrelay2.lrz.de: 100
  • mailrelay1.lrz.de: 100

A / AAAA Records

  • 129.187.54.43 ↩ lamellenkupplung.fs.ei.tum.de
  • 2001:4ca0:22ff:10::43 ↩ lamellenkupplung.fs.ei.tum.de

Mail Server IPs

  • 129.187.255.134 ↩ mailrelay2.lrz.de
  • 2001:4ca0::103:0:0:81bb:ff86 ↩ mailrelay2.lrz.de
  • 129.187.255.133 ↩ mailrelay1.lrz.de
  • 2001:4ca0::103:0:0:81bb:ff85 ↩ mailrelay1.lrz.de

SOA Record

Raw SOA dns1.lrz.de hostmaster.fs.ei.tum.de 2026032501 3600 1200 1209600 1800
Primary NS (mname)
dns1.lrz.de
Admin Email (rname)
hostmaster@fs.ei.tum.de
Serial
2026032501
Refresh
3600s
Retry
1200s
Expire
1209600s
Minimum TTL
1800s

Nameservers (NS)

dns3.lrz.eu
dns1.lrz.de
dns2.lrz.bayern

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:129.187.54.18 ip6:2001:4ca0:22ff:10::18 include:_spf.mail.lrz.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; adkim=r; aspf=r; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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
  • google-site-verification=Gzl0KaqoPC8tZQFX5A2m9reK3TCuUGA78E0lD8fuoRs
  • SPFv=spf1 ip4:129.187.54.18 ip6:2001:4ca0:22ff:10::18 include:_spf.mail.lrz.de ~all
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