Domain Overview
DNS: ✓ 7d ago
Checker: ✓ 7d ago
zeller.cx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-25 22:49:51 UTC · ↺ Refresh
MX Hostnames
- mail.zeller.cx
MX Priorities
- mail.zeller.cx: 50
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 103.208.218.119 ↩ mail.zeller.cx
SOA Record
Raw SOA
ns1.web24.net.au root.zeller.cx 2026042200 3600 1800 1209600 86400
Primary NS (mname)
ns1.web24.net.au
Admin Email (rname)
root@zeller.cx
Serial
2026042200
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.web24.net.au
ns3.web24.net.au
ns2.web24.net.au
SPF Record
✓ Strict (-all)
v=spf1 mx a:auburn.zeller.cx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 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
3 records- google-site-verification=W-JsPIU46bcSsNNESTIWd3_PPCfC3B-ePLyM8vmoISc
- SPFv=spf1 mx a:auburn.zeller.cx -all
- facebook-domain-verification=tpju1dyt9mlajylw2usod9mj6vbusy
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