Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
americanconstructionsupply.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 05:32:56 UTC · ↺ Refresh
MX Hostnames
- americanconstructionsupply-com.mail.protection.outlook.com
MX Priorities
- americanconstructionsupply-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.163.99 (no PTR)
- 104.21.81.186 (no PTR)
- 2606:4700:3034::ac43:a363
- 2606:4700:3032::6815:51ba
Mail Server IPs
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
dolly.ns.cloudflare.com dns.cloudflare.com 2395968261 10000 2400 604800 1800
Primary NS (mname)
dolly.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2395968261
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dolly.ns.cloudflare.com
jakub.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.serverdata.net include:spf.onesignal.email include:24035305.spf04.hubspotemail.net ip4:159.66.240.102 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=90
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 90% of failing messages only
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- Jpyz8tfRH+A7CJVkYpOcB/B6Oo34ZsOdmNhHHdaA55o=
- apple-domain-verification=NOCaHwbUs8hTqosv
- cisco-ci-domain-verification=725397a427cb8a756504319cfbd19903d501e99438abef0ff43095555d0b9bc2
- google-site-verification=VdfcUFqNB2higGHbiO2sGRFr_mzo4IxS4IKw2ZxGBiw
- google-site-verification=YuJ31NkPKWVG_dEF8eTQWoiBNITQCMiUYUpLlBnT0JE
- SPFv=spf1 include:spf.protection.outlook.com include:spf.serverdata.net include:spf.onesignal.email include:24035305.spf04.hubspotemail.net ip4:159.66.240.102 -all
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