servicefirst.io

Valid Email Server
Domain Lookup › servicefirst.io

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
servicefirst.io
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 21:27:00 UTC · ↺ Refresh

MX Hostnames

  • servicefirst-io.mail.protection.outlook.com

MX Priorities

  • servicefirst-io.mail.protection.outlook.com: 0

A / AAAA Records

  • 54.254.4.52 ↩ ec2-54-254-4-52.ap-southeast-1.compute.amazonaws.com
  • 18.142.87.181 ↩ ec2-18-142-87-181.ap-southeast-1.compute.amazonaws.com
  • 47.131.79.66

Mail Server IPs

  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com

SOA Record

Raw SOA ns-254.awsdns-31.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-254.awsdns-31.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1149.awsdns-15.org
ns-1778.awsdns-30.co.uk
ns-254.awsdns-31.com
ns-930.awsdns-52.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:52.27.199.189 include:spf.protection.outlook.com include:_spf.safewebservices.com -all
📊 DNS lookups: 2/10
✓ 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
  • atlassian-domain-verification=y3mtLWScIDMEAkgHys6demxfDcQ5gzaTw6h60aowUOPKAaxveCArJlhaIKyC89QB
  • google-site-verification=K5Wcc8L4IKOjK7boTdk-f06NFjFaLReoVE-9Ly_MaEo
  • SPFv=spf1 ip4:52.27.199.189 include:spf.protection.outlook.com include:_spf.safewebservices.com -all
  • MS=ms40984301
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