hno-regensburg.de

Valid Email Server
Domain Lookup › hno-regensburg.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hno-regensburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 18:32:59 UTC · ↺ Refresh

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MX Hostnames

  • mx10.websupport.sk
  • mx20.websupport.sk

MX Priorities

  • mx20.websupport.sk: 100
  • mx10.websupport.sk: 10

A / AAAA Records

  • 37.9.175.181 ↩ ing.r4.websupport.sk
  • 2a00:4b40:aaaa:2007::7 (no PTR)

Mail Server IPs

  • 45.13.137.109 ↩ m1-u5-mx.websupport.sk
  • 2a00:4b40:aaaa:2101:45:13:137:109 ↩ mx20.websupport.sk
  • 45.13.137.110 ↩ m1-u6-mx.websupport.sk
  • 2a00:4b40:aaaa:2101:45:13:137:110 ↩ mx10.websupport.sk

SOA Record

Raw SOA ns1.websupport.sk admin.websupport.sk 1769778954 7200 2048 1048576 2560
Primary NS (mname)
ns1.websupport.sk
Admin Email (rname)
admin@websupport.sk
Serial
1769778954
Refresh
7200s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s

Nameservers (NS)

ns2.websupport.sk
ns3.websupport.sk
ns1.websupport.sk

SPF Record

✓ Strict (-all)
v=spf1 a mx include:_spf.m1.websupport.sk -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 a mx include:_spf.m1.websupport.sk -all
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