Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usa.dupont.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 03:43:43 UTC · ↺ Refresh
MX Hostnames
- mxb-001dcd02.gslb.pphosted.com
- mxa-001dcd02.gslb.pphosted.com
MX Priorities
- mxa-001dcd02.gslb.pphosted.com: 10
- mxb-001dcd02.gslb.pphosted.com: 10
A / AAAA Records
- 52.129.16.68 (no PTR)
Mail Server IPs
- 91.207.212.156 ↩ mx08-001dcd02.pphosted.com
SOA Record
Raw SOA
pdns1.ultradns.net contact.usa.dupont.com 2010121409 3600 1200 864000 86400
Primary NS (mname)
pdns1.ultradns.net
Admin Email (rname)
contact@usa.dupont.com
Serial
2010121409
Refresh
3600s
Retry
1200s
Expire
864000s
Minimum TTL
86400s
Nameservers (NS)
pdns1.ultradns.net
pdns2.ultradns.net
pdns3.ultradns.org
pdns4.ultradns.org
pdns5.ultradns.info
pdns6.ultradns.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf-001dcd02.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
1 record- SPFv=spf1 include:spf-001dcd02.pphosted.com ~all
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