Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
unitedconstructiononline.com
Yes
✓ Yes
Yahoo
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 22:14:52 UTC · ↺ Refresh
MX Hostnames
- mx1.biz.mail.yahoo.com
- mx-biz.mail.am0.yahoodns.net
- mx5.biz.mail.yahoo.com
MX Priorities
- mx1.biz.mail.yahoo.com: 1
- mx-biz.mail.am0.yahoodns.net: 0
- mx5.biz.mail.yahoo.com: 5
A / AAAA Records
- 208.94.107.12 ↩ sh1.linknowmedia.com
Mail Server IPs
- 67.195.228.75 ↩ mtaproxy1.biz.mail.vip.gq1.yahoo.com
- 67.195.204.83 ↩ mtaproxy1.biz.mail.vip.bf1.yahoo.com
SOA Record
Raw SOA
ns1.linknowmedia.com gespinosa.linknowmedia.com 2026011801 3600 1800 1209600 86400
Primary NS (mname)
ns1.linknowmedia.com
Admin Email (rname)
gespinosa@linknowmedia.com
Serial
2026011801
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.linknowmedia.com
ns2.linknowmedia.com
SPF Record
✓ Strict (-all)
v=spf1 include:relayhost1.linknowmedia.cloud include:relayhost2.linknowmedia.cloud ip4:192.175.104.8 +a +mx +ip4:208.94.107.12-all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._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
1 record- SPFv=spf1 include:relayhost1.linknowmedia.cloud include:relayhost2.linknowmedia.cloud ip4:192.175.104.8 +a +mx +ip4:208.94.107.12-all
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