cup.uni-muenchen.de

Valid Email Server
Domain Lookup › cup.uni-muenchen.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cup.uni-muenchen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 14:28:03 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • mailrelay2.lrz.de: 5
  • mailrelay1.lrz.de: 5

A / AAAA Records

  • 141.84.254.75 ↩ www.cup.uni-muenchen.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 dopamin.cup.uni-muenchen.de root.dopamin.cup.uni-muenchen.de 2026022602 7200 1800 3600000 86400
Primary NS (mname)
dopamin.cup.uni-muenchen.de
Admin Email (rname)
root@dopamin.cup.uni-muenchen.de
Serial
2026022602
Refresh
7200s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

dopamin.cup.uni-muenchen.de
cicum4.cup.uni-muenchen.de
cicum1.cup.uni-muenchen.de
dns3.lrz.de
dns2.lrz.de
dns1.lrz.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:141.84.246.5 ip4:141.84.248.177 ip4:141.84.250.4 ip4:141.84.252.2 ip4:141.84.254.1 ip4:141.84.254.6 ip4:141.84.254.200 ip4:141.84.254.75 ip4:141.84.248.2 ip4:141.84.255.9 ip4:141.84.254.3 ip4:129.187.255.135 ip4:129.187.255.136 ip4:141.84.254.2 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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

1 record
  • SPFv=spf1 ip4:141.84.246.5 ip4:141.84.248.177 ip4:141.84.250.4 ip4:141.84.252.2 ip4:141.84.254.1 ip4:141.84.254.6 ip4:141.84.254.200 ip4:141.84.254.75 ip4:141.84.248.2 ip4:141.84.255.9 ip4:141.84.254.3 ip4:129.187.255.135 ip4:129.187.255.136 ip4:141.84.254.2 a mx -all
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