education.lu

Valid Email Server
Domain Lookup › education.lu
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
education.lu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 07:47:39 UTC · ↺ Refresh

MX Hostnames

  • smtpgate2.restena.lu
  • smtpgate1.restena.lu
  • smtpgate3.restena.lu

MX Priorities

No priority data.

A / AAAA Records

  • 158.64.75.17

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

nsp.restena.lu
ns1.restena.lu
ns2.restena.lu
ns3.restena.lu
nse.restena.lu

SPF Record

✓ Strict (-all)
v=spf1 mx a:smtp.restena.lu include:spf.protection.outlook.com ip4:158.64.75.141/32 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; aspf=r; adkim=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

5 records
  • abuseipdb-verification=5QNpnhHb
  • SPFv=spf1 mx a:smtp.restena.lu include:spf.protection.outlook.com ip4:158.64.75.141/32 -all
  • wni5cBAbHz14K5/0xJnm0Ufd/BGe4PJ6Jmu77BADF5N6+sNHQM4KQ+s7k8cSe44BnxxRsBCpEhWmYmX5k4qFFQ==
  • adobe-idp-site-verification=279dd1eb2aef49c23b19e8208f340930b7ca72d2333bc1be162ef607ffbfbecf
  • HARICA-OKqoCBxIXXNmYNF0QQM
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