Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nicholsonconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 10:12:38 UTC · ↺ Refresh
MX Hostnames
- nicholsonconstruction-com.mail.protection.outlook.com
MX Priorities
- nicholsonconstruction-com.mail.protection.outlook.com: 5
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.gandi.net hostmaster.gandi.net 1773878400 10800 3600 604800 10800
Primary NS (mname)
ns1.gandi.net
Admin Email (rname)
hostmaster@gandi.net
Serial
1773878400
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns-223-a.gandi.net
ns-10-b.gandi.net
ns-235-c.gandi.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:aspmx.pardot.com include:turbo-smtp.com include:_spf.salesforce.com include:_spf.smtp.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
7 records- adobe-idp-site-verification=fd15a0b5126eae0125ba505be6a00c6985069a1d6370a13fa9df922a48d06b4e
- autodesk-domain-verification=HzYppcUng7c2TIboXgD3
- MS=ms41159230
- pardot923703=d70b35fc2ca50c7f27f0f2800129cdf803919b9dd09cad4a81afbe6f957013e1
- SPFv=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:aspmx.pardot.com include:turbo-smtp.com include:_spf.salesforce.com include:_spf.smtp.com -all
- KfZKNilCV5XM4eQrkHa2dWGmdCHna9Ze/ZmUXHv9lksJ5CMblJ8royafEKUSQGDqt7+cq8LNDOzmbJ+/YvkaJw==
- 00D2p0000013hiw=1TBbF000000001d
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