firstarfiber.com

Valid Email Server
Domain Lookup › firstarfiber.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
firstarfiber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 10:31:15 UTC · ↺ Refresh

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MX Hostnames

  • firstarfiber-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 35.184.228.64 ↩ 64.228.184.35.bc.googleusercontent.com

Mail Server IPs

  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns87.worldnic.com namehost.worldnic.com 125111110 10800 3600 604800 3600
Primary NS (mname)
ns87.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125111110
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns87.worldnic.com
ns88.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:72.214.233.71 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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=ms12237114
  • SPFv=spf1 ip4:72.214.233.71 include:spf.protection.outlook.com ~all
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