Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nrg.eu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:38:57 UTC · ↺ Refresh
MX Hostnames
- mx10.surfmailfilter.nl
- mx11.surfmailfilter.nl
MX Priorities
- mx10.surfmailfilter.nl: 100
- mx11.surfmailfilter.nl: 100
A / AAAA Records
- 20.105.232.33 (no PTR)
Mail Server IPs
- 192.87.106.168 ↩ mx10.surfmailfilter.nl
- 2001:610:188:173:192:87:106:168 (no PTR)
- 195.169.13.8 ↩ mx11.surfmailfilter.nl
- 2001:610:1:40ab:195:169:13:8 ↩ mx11.surfmailfilter.nl
SOA Record
Raw SOA
ns1.nrg.eu postmaster.nrg.eu 2026022676 120 7200 1209600 3600
Primary NS (mname)
ns1.nrg.eu
Admin Email (rname)
postmaster@nrg.eu
Serial
2026022676
Refresh
120s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1.nrg.eu
ns2.nrg.eu
ns1.transip.nl
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.surfmailfilter.nl include:lms.plusport.com include:spf.protection.outlook.com include:spf.by-tres.nl include:shsp.nrg.eu include:spf.afas.online a:nrgdev.nl -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
7 records- autodesk-domain-verification=JrW5e27ZZKEwo_XcKVQk
- 8d595b4857977554b0ef7a3607fd933b2cef73d7a8af1ae5d5336ee754fe6478
- google-site-verification=b9KDO9sNHWq04oNz0NGWxbEUK5zo094yAK3HNypYL0g
- ZOOM_verify_4WSstYnMSc6WSE8rw1pFeg
- apple-domain-verification=adTHwzl0Hiv6RgLa
- vmbgJ9nBAu7xKPyqr3NS29CIuqKwaoIbUTItaUZNTv+89KjMiZnjcrYeVQKwEp41iJXFsXnQ1Fu2g79au1AJ5A==
- SPFv=spf1 include:_spf.surfmailfilter.nl include:lms.plusport.com include:spf.protection.outlook.com include:spf.by-tres.nl include:shsp.nrg.eu include:spf.afas.online a:nrgdev.nl -all
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