Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
holzconstructors.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:48:58 UTC · ↺ Refresh
MX Hostnames
- holzconstructors-com.mail.protection.outlook.com
MX Priorities
- holzconstructors-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.131.96 (no PTR)
- 104.21.3.247 (no PTR)
- 2606:4700:3035::ac43:8360
- 2606:4700:3031::6815:3f7
Mail Server IPs
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
SOA Record
Raw SOA
gabriel.ns.cloudflare.com dns.cloudflare.com 2398558533 10000 2400 604800 1800
Primary NS (mname)
gabriel.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398558533
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
gabriel.ns.cloudflare.com
simone.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:69.90.66.20 +include:spf.hostpapa.com +ip4:76.74.242.170 +include:spf.antispamcloud.com +include:relay.mailchannels.net include:spf.protection.outlook.com +include:wwmail.ca ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 +a +mx +ip4:69.90.66.20 +include:spf.hostpapa.com +ip4:76.74.242.170 +include:spf.antispamcloud.com +include:relay.mailchannels.net include:spf.protection.outlook.com +include:wwmail.ca ~all
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