grupocb.com.br

Valid Email Server
Domain Lookup › grupocb.com.br

Domain Overview

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

Checked via [email protected] · 2026-03-27 01:53:37 UTC · ↺ Refresh

MX Hostnames

  • grupocb-com-br.mail.protection.outlook.com

MX Priorities

  • grupocb-com-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 52.6.120.162 ↩ ec2-52-6-120-162.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com

SOA Record

Raw SOA ns01.tivit.net dns.tivit.com 2025112701 43200 7200 1209600 3600
Primary NS (mname)
ns01.tivit.net
Admin Email (rname)
dns@tivit.com
Serial
2025112701
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns04.tivit.net
ns03.tivit.net
ns02.tivit.net
ns01.tivit.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:186.232.188.12 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

5 records
  • oh4ds978vvg43ecbcr3ov4hm83
  • ualop7gpd91tl6te76ua2pooff
  • SPFv=spf1 include:spf.protection.outlook.com ip4:186.232.188.12 -all
  • llvrm4eih92lqhq4bh4hba8mhb
  • d4sign-domain-verification=b5449a10-d468-45a8-a6ff-901125177442
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for grupocb.com.br

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits