certifiedservicesco.com

Valid Email Server
Domain Lookup › certifiedservicesco.com

Domain Overview

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

Checked via [email protected] · 2026-03-24 22:57:00 UTC · ↺ Refresh

MX Hostnames

  • certifiedservicesco-com.mail.protection.outlook.com

MX Priorities

  • certifiedservicesco-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 173.254.97.137 ↩ 173-254-97-137.unifiedlayer.com

Mail Server IPs

  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
  • 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1060.ui-dns.de hostmaster.1und1.com 2017060117 28800 7200 604800 600
Primary NS (mname)
ns1060.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060117
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1055.ui-dns.biz
ns1048.ui-dns.com
ns1055.ui-dns.org
ns1060.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:67.20.115.110 +ip4:67.20.76.129 +include:spf.protection.outlook.com +include:hostmonster.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 168 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • SPFv=spf1 +a +mx +ip4:67.20.115.110 +ip4:67.20.76.129 +include:spf.protection.outlook.com +include:hostmonster.com -all
  • MS=ms72661833
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