Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lernserver.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 15:11:07 UTC · ↺ Refresh
MX Hostnames
- mail.lernserver.de
MX Priorities
- mail.lernserver.de: 10
A / AAAA Records
- 162.55.80.47 ↩ xenon.lernserver.de
- 2a01:4f8:271:1010::2 ↩ xenon.lernserver.de
Mail Server IPs
- 162.55.80.47 ↩ xenon.lernserver.de
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026030701 900 1800 604800 300
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026030701
Refresh
900s
Retry
1800s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx a:xenon.lernserver.de a:argon.lernserver.de a:portal.lernserver.de a:work.lernserver.de a:mail.lernserver.de a:diskuss.de a:horreum4.info ~all
📊 DNS lookups: 9/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- ZOOM_verify_4y1x0YbbmgyAIQJvaoiJWr
- google-site-verification=yCjz9oAoDMWuhdnWtBvP4N31mr4zyRzrf5E0aG32X1U
- stripe-verification=f75df3922c86fa50abf2a18a0b73f9b8ca2102edf13142613c8e16c044d6bb74
- SPFv=spf1 +a +mx a:xenon.lernserver.de a:argon.lernserver.de a:portal.lernserver.de a:work.lernserver.de a:mail.lernserver.de a:diskuss.de a:horreum4.info ~all
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