Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
doorandsecuritysolutions.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 11:50:47 UTC · ↺ Refresh
MX Hostnames
- doorandsecuritysolutions-com.mail.protection.outlook.com
MX Priorities
- doorandsecuritysolutions-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.159.234 (no PTR)
- 104.21.66.126 (no PTR)
- 2606:4700:3035::ac43:9fea
- 2606:4700:3031::6815:427e
Mail Server IPs
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
dorthy.ns.cloudflare.com dns.cloudflare.com 2397960787 10000 2400 604800 1800
Primary NS (mname)
dorthy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397960787
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
randall.ns.cloudflare.com
dorthy.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- mscid=hUNbkqs1asbljJ6ryWDF3kIMlUQHs/2pDWC5cxWGMAlxpYa4/A46fTdlOLGo/BS3Nb5/6EJYSg6mDrR37LsPng==
- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms28094534
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