Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
duplionline.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:30:14 UTC · ↺ Refresh
MX Hostnames
- mail.duplionline.com
MX Priorities
- mail.duplionline.com: 1
A / AAAA Records
- 216.171.183.245 ↩ mail.duplionline.com
Mail Server IPs
- 216.171.183.245 ↩ mail.duplionline.com
SOA Record
Raw SOA
ns10.dnsmadeeasy.com dns.dnsmadeeasy.com 2009010278 43200 3600 1209600 180
Primary NS (mname)
ns10.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2009010278
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns12.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns11.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:216.171.183.245 ip4:65.198.65.25 include:servers.mcsv.net include:_spf.salesforce.com include:email-od.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
default._domainkey
k1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- google-site-verification=ulAccTbDX_dAgC2tE4IOIsfEvnMVsMkyHCdv1USaS98
- google-site-verification=IdPN48V8dlrhypiGhbO3aU14wYn19Cc57AhdmM3gdXo
- SPFv=spf1 mx a ip4:216.171.183.245 ip4:65.198.65.25 include:servers.mcsv.net include:_spf.salesforce.com include:email-od.com ~all
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