gassanmarcos.com

Valid Email Server
Domain Lookup › gassanmarcos.com

Domain Overview

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

Checked via [email protected] · 2026-04-01 22:03:58 UTC · ↺ Refresh

MX Hostnames

  • gassanmarcos-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 18.164.116.23 ↩ server-18-164-116-23.jfk50.r.cloudfront.net
  • 18.164.116.57 ↩ server-18-164-116-57.jfk50.r.cloudfront.net
  • 18.164.116.45
  • 18.164.116.124

Mail Server IPs

  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA ns-592.awsdns-10.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-592.awsdns-10.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-592.awsdns-10.net
ns-119.awsdns-14.com
ns-1492.awsdns-58.org
ns-1648.awsdns-14.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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