onebox.com

Valid Email Server
Domain Lookup › onebox.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
onebox.com
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 15:32:49 UTC · ↺ Refresh

MX Hostnames

  • usa.mx2.mx25.net
  • usa.mx3.mailanyone.net
  • usa.mx4.mx25.net
  • usa.mx1.mailanyone.net

MX Priorities

  • usa.mx2.mx25.net: 20
  • usa.mx3.mailanyone.net: 30
  • usa.mx4.mx25.net: 40
  • usa.mx1.mailanyone.net: 10

A / AAAA Records

  • 104.18.39.118 (no PTR)
  • 172.64.148.138 (no PTR)

Mail Server IPs

  • 208.70.135.237 ↩ mx43.electric.net
  • 208.70.135.116 ↩ mx43.electric.net

SOA Record

Raw SOA nicole.ns.cloudflare.com dns.cloudflare.com 2399690311 10000 2400 604800 1800
Primary NS (mname)
nicole.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399690311
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nicole.ns.cloudflare.com
oswald.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:63.116.130.0/24 ip4:63.116.131.0/24 ip4:72.5.196.0/24 ip4:3.142.190.222 ip4:3.134.49.37 ip4:3.19.251.10 ip4:3.13.67.56 include:electric.net mx include:_spf.salesforce.com include:_spf.smtp.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; pct=100; aspf=r;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No 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

4 records
  • sending_domain954413=f839dc61b9d25b39645e54ea3b9d8167c097d09f656a26b71f10f86949691627
  • SPFv=spf1 ip4:63.116.130.0/24 ip4:63.116.131.0/24 ip4:72.5.196.0/24 ip4:3.142.190.222 ip4:3.134.49.37 ip4:3.19.251.10 ip4:3.13.67.56 include:electric.net mx include:_spf.salesforce.com include:_spf.smtp.com ~all
  • google-site-verification=SSSxImMyPrHHbhSZPreuvMgpaSULlDnJ9T3gcD55rRE
  • pardot954413=61cd9bc9e3a24ca104882c50dfea6b1ed2f9b58dd656e663091f6312db0d8c7a
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