Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
estabrk.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 05:56:08 UTC · ↺ Refresh
MX Hostnames
- estabrk-com.mail.protection.outlook.com
MX Priorities
- estabrk-com.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.digitalocean.com hostmaster.estabrk.com 1718207473 10800 3600 604800 1800
Primary NS (mname)
ns1.digitalocean.com
Admin Email (rname)
hostmaster@estabrk.com
Serial
1718207473
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns1.digitalocean.com
ns3.digitalocean.com
ns2.digitalocean.com
SPF Record
✓ Strict (-all)
v=spf1 include:authsmtp.com ip4:74.143.22.18 ip4:75.76.64.194 ip4:72.52.72.36 ip4:199.30.235.11 ip4:74.203.185.12 ip4:72.52.72.39 ip4:23.244.11.166 include:estabrk-com.spf.smtp25.com include:edgepilot.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=reject;pct=0;ri=86400;aspf=r;adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
⚠ Policy applies to 0% of failing messages only
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
4 records- SPFv=spf1 include:authsmtp.com ip4:74.143.22.18 ip4:75.76.64.194 ip4:72.52.72.36 ip4:199.30.235.11 ip4:74.203.185.12 ip4:72.52.72.39 ip4:23.244.11.166 include:estabrk-com.spf.smtp25.com include:edgepilot.com include:spf.protection.outlook.com -all
- as=1649358533
- A1P4JlXllqf+q0KPGAHQCg==
- MS=ms78231190
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