1040income.tax

Valid Email Server
Domain Lookup › 1040income.tax

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
1040income.tax
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 13:34:30 UTC · ↺ Refresh

MX Hostnames

  • 1040income-tax.mail.protection.outlook.com

MX Priorities

  • 1040income-tax.mail.protection.outlook.com: 0

A / AAAA Records

  • 52.5.206.218 ↩ ec2-52-5-206-218.compute-1.amazonaws.com
  • 3.220.225.62 ↩ ec2-3-220-225-62.compute-1.amazonaws.com
  • 3.225.142.148

Mail Server IPs

  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1300.awsdns-34.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1300.awsdns-34.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1635.awsdns-12.co.uk
ns-354.awsdns-44.com
ns-536.awsdns-03.net
ns-1300.awsdns-34.org

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

2 records
  • MS=ms32588733
  • SPFv=spf1 include:spf.protection.outlook.com -all
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