Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hwg-lu.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 23:30:18 UTC · ↺ Refresh
MX Hostnames
- mailgate-1.zdv.net
- mailgate-2.zdv.net
- mailgate-3.zdv.net
MX Priorities
- mailgate-3.zdv.net: 100
- mailgate-1.zdv.net: 100
- mailgate-2.zdv.net: 100
A / AAAA Records
- 143.93.201.16 (no PTR)
Mail Server IPs
- 134.93.178.243 ↩ mailgate-3.zdv.net
- 2001:4c80:40:62d::25:3 ↩ mailgate-3.zdv.net
- 134.93.178.241 ↩ mailgate-1.zdv.net
- 2001:4c80:40:62d::25:1 ↩ mailgate-1.zdv.net
- 134.93.178.242 ↩ mailgate-2.zdv.net
- 2001:4c80:40:62d::25:2 ↩ mailgate-2.zdv.net
SOA Record
Raw SOA
tim.fh-ludwigshafen.de postmaster.hwg-lu.de 2027030301 28800 7200 604800 3600
Primary NS (mname)
tim.fh-ludwigshafen.de
Admin Email (rname)
postmaster@hwg-lu.de
Serial
2027030301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
tim.fh-ludwigshafen.de
ns-auth.rptu.de
struppi.fh-ludwigshafen.de
SPF Record
✓ Strict (-all)
v=spf1 a include:zdv.net include:spf-eu.exlibrisgroup.com include:_spf.psm.knowbe4.com ip4:143.93.198.48 ip4:83.243.48.64/26 ip4:212.118.195.47 ip4:143.93.200.55 include:spf.crsend.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; sp=quarantine; aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
9 records- google-site-verification=b_3cPcl_0p49fep1Gzx5MOmHRkkQNLAbsdDX0rmzPnM
- SPFv=spf1 a include:zdv.net include:spf-eu.exlibrisgroup.com include:_spf.psm.knowbe4.com ip4:143.93.198.48 ip4:83.243.48.64/26 ip4:212.118.195.47 ip4:143.93.200.55 include:spf.crsend.com -all
- ZOOM_verify_r5icCyeyROyunOoeNyVPhQ
- google-site-verification=QE7sNH8mgP6Tq5G2w2lD8UVH9GmIM8lrKXaN-GVfwlg
- v=spf2.0/mfrom,pra include:zdv.net include:spf-eu.exlibrisgroup.com include:_spf.psm.knowbe4.com ip4:143.93.198.48 ip4:83.243.48.64/26 ip4:212.118.195.47 ip4:143.93.200.55 include:spf.crsend.com -all
- apple-domain-verification=vBY4zqrg1XkEmaa9
- ZOOM_verify_tsrT4qoXQL2Mbl1MXynXD
- sophos-domain-verification=b9ce633a93adde215646043d615a91f7d100ea95156820c43a5a8cfad7d543e0
- ZOOM_verify_NW0ZvW_mTIm7esA5Sp53Hw
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