Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mirmi.tum.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 05:57:02 UTC · ↺ Refresh
MX Hostnames
- postrelay2.lrz.de
- postrelay1.lrz.de
MX Priorities
- postrelay1.lrz.de: 100
- postrelay2.lrz.de: 100
A / AAAA Records
- 129.187.39.10 ↩ redirect.mytum.de
- 2001:4ca0:2e03::1:10 ↩ redirect.mytum.de
Mail Server IPs
- 129.187.254.158 ↩ postrelay1a.lrz.de
- 129.187.255.160 ↩ postrelay1b.lrz.de
- 2001:4ca0::103:0:0:81bb:ffa0 ↩ postrelay1.lrz.de
- 2001:4ca0::103:0:25:1:1 ↩ postrelay1a.lrz.de
- 129.187.254.159 ↩ postrelay2a.lrz.de
- 129.187.255.161 ↩ postrelay2b.lrz.de
- 2001:4ca0::103:0:25:1:2 ↩ postrelay2a.lrz.de
- 2001:4ca0::103:0:0:81bb:ffa1 ↩ postrelay2b.lrz.de
SOA Record
Raw SOA
dns1.lrz.de hostmaster.lrz.de 2026032513 10800 3600 1814400 86400
Primary NS (mname)
dns1.lrz.de
Admin Email (rname)
hostmaster@lrz.de
Serial
2026032513
Refresh
10800s
Retry
3600s
Expire
1814400s
Minimum TTL
86400s
Nameservers (NS)
dns3.lrz.eu
dns2.lrz.bayern
dns1.lrz.de
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=_spf.mail.lrz.de
📊 DNS lookups: 1/10
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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 redirect=_spf.mail.lrz.de
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