zv.tum.de

Valid Email Server
Domain Lookup › zv.tum.de

Domain Overview

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

Checked via [email protected] · 2026-03-20 13:24:21 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

  • mailrelay1.lrz.de: 10
  • mailrelay2.lrz.de: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

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

SOA Record

Raw SOA dns1.lrz.de hostmaster.lrz.de 2026030612 10800 3600 1814400 86400
Primary NS (mname)
dns1.lrz.de
Admin Email (rname)
hostmaster@lrz.de
Serial
2026030612
Refresh
10800s
Retry
3600s
Expire
1814400s
Minimum TTL
86400s

Nameservers (NS)

dns1.lrz.de
dns3.lrz.de
dns2.lrz.de

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a:mail.zv.tum.de a:rmail.zv.tum.de a:extfw.zv.tum.de include:_spf.mail.lrz.de ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s
~ Quarantine — good protection (failing mail goes to spam)
📋 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

2 records
  • SPFv=spf1 mx a:mail.zv.tum.de a:rmail.zv.tum.de a:extfw.zv.tum.de include:_spf.mail.lrz.de ~all
  • MS=ED02E2361A52A1D82AE89239E6B8CB2E23DFE036
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