his-online.de

Valid Email Server
Domain Lookup › his-online.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
his-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 15:15:42 UTC · ↺ Refresh

MX Hostnames

  • mx01.rrz.uni-hamburg.de
  • mx02.rrz.uni-hamburg.de

MX Priorities

  • mx01.rrz.uni-hamburg.de: 10
  • mx02.rrz.uni-hamburg.de: 10

A / AAAA Records

  • 52.29.174.51 ↩ kiel.jweiland.cloud

Mail Server IPs

  • 134.100.38.101 ↩ mx01.rrz.uni-hamburg.de
  • 134.100.38.102 ↩ mx02.rrz.uni-hamburg.de

SOA Record

Raw SOA ns1.first-ns.de dns.hetzner.com 2026032201 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026032201
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de

SPF Record

✓ Strict (-all)
v=spf1 mx include:uni-hamburg.de include:spf.crsend.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

3 records
  • SPFv=spf1 mx include:uni-hamburg.de include:spf.crsend.com include:spf.protection.outlook.com -all
  • MS=BA015924FE8C8C7C6FE81AFCF56308DB7C23535C
  • MS=ms49991162
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