tecnosulfur.com.br

Valid Email Server
Domain Lookup › tecnosulfur.com.br

Domain Overview

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

Checked via [email protected] · 2026-04-04 12:40:22 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 187.45.195.27 ↩ hm3071.locaweb.com.br

Mail Server IPs

  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.9.17 (no PTR)
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.locaweb.com.br hostmaster.locaweb.com.br 2022031001 3600 600 1209600 3600
Primary NS (mname)
ns1.locaweb.com.br
Admin Email (rname)
hostmaster@locaweb.com.br
Serial
2022031001
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns1.locaweb.com.br
ns2.locaweb.com.br
ns3.locaweb.com.br

SPF Record

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

DMARC Record

✗ p=none
v=DMARC1; fo=1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 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

4 records
  • 4IOOkkBGFVn9sOZGhs42yE5CZ2ZOKEyXeZOteFmoRBHWCcr8PIBlLORWbdAhF6r0dfX/oH1ZsSugKLqyEDjRxQ==
  • knowbe4-site-verification=fc7bdc76e66d5e6d118aba9b65356792
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • _globalsign-domain-verification=jXtzHbwsI3Upp8l9gysGmUvUZtd-u7dqlynsP6ZzB9
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