certina-group.com

Valid Email Server
Domain Lookup › certina-group.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
certina-group.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 00:44:18 UTC · ↺ Refresh

MX Hostnames

  • certinagroup-com01i.mail.protection.outlook.com

MX Priorities

  • certinagroup-com01i.mail.protection.outlook.com: 0

A / AAAA Records

  • 35.157.26.135 ↩ ec2-35-157-26-135.eu-central-1.compute.amazonaws.com
  • 63.176.8.218 ↩ ec2-63-176-8-218.eu-central-1.compute.amazonaws.com

Mail Server IPs

  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns77.domaincontrol.com dns.jomax.net 2025070701 28800 7200 604800 600
Primary NS (mname)
ns77.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025070701
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns78.domaincontrol.com
ns77.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.coi.de include:spf.coi.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

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

All TXT Records

3 records
  • brevo-code:81440dab5cc4bb5c18e47260e932801a
  • SPFv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.coi.de include:spf.coi.com ~all
  • MS=ms34074417
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