estesco.com

Valid Email Server
Domain Lookup › estesco.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
estesco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 13:42:40 UTC · ↺ Refresh

MX Hostnames

  • estesco-com.mail.protection.outlook.com

MX Priorities

  • estesco-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 18.235.135.157 ↩ ec2-18-235-135-157.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com

SOA Record

Raw SOA ns-717.awsdns-25.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-717.awsdns-25.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1987.awsdns-56.co.uk
ns-410.awsdns-51.com
ns-717.awsdns-25.net
ns-1413.awsdns-48.org

SPF Record

✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • google-site-verification=jE7pLPE_64tPENUUFJEZr-U7_w9xOpjQ_JWitOOo0xU
  • SPFv=spf1 include:secureserver.net -all
  • MS=ms97203527
  • crKX3CzQ
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