fibertech.com

Valid Email Server
Domain Lookup › fibertech.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fibertech.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 04:43:15 UTC · ↺ Refresh

MX Hostnames

  • fibertech-com.mail.protection.outlook.com

MX Priorities

  • fibertech-com.mail.protection.outlook.com: 5

A / AAAA Records

  • 54.243.50.130 ↩ ec2-54-243-50-130.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA mrbodnsmaster101.nss.crowncastle.com hostadmin.crowncastle.com 2019091415 10800 3600 2419200 300
Primary NS (mname)
mrbodnsmaster101.nss.crowncastle.com
Admin Email (rname)
hostadmin@crowncastle.com
Serial
2019091415
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns2.hvdata.net
ns1.hvdata.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:64.238.142.196 ip4:64.238.142.195 ip4:71.174.221.91 ip4:64.238.140.109 ip4:64.238.140.111 ip4:4.15.70.225 include:mktomail.com include:spf.messagelabs.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

3 records
  • SPFv=spf1 ip4:64.238.142.196 ip4:64.238.142.195 ip4:71.174.221.91 ip4:64.238.140.109 ip4:64.238.140.111 ip4:4.15.70.225 include:mktomail.com include:spf.messagelabs.com include:spf.protection.outlook.com ~all
  • SPFv=spf1 include:spf.messagelabs.com ~all
  • MS=ms72646645
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