ferreiracosta.com.br

Valid Email Server
Domain Lookup › ferreiracosta.com.br

Domain Overview

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

Checked via [email protected] · 2026-03-23 20:05:23 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 16.15.207.37 (no PTR)
  • 52.216.221.21 ↩ s3-website-us-east-1.amazonaws.com
  • 54.231.166.189
  • 3.5.16.78
  • 52.217.199.229
  • 16.15.176.31
  • 52.217.201.77
  • 52.217.123.165

Mail Server IPs

  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns-333.awsdns-41.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-333.awsdns-41.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1728.awsdns-24.co.uk
ns-333.awsdns-41.com
ns-740.awsdns-28.net
ns-1210.awsdns-23.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:177.19.208.220 include:spf.protection.outlook.com include:spf-00a5b101.pphosted.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s; sp=reject; fo=1; pct=100; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

8 records
  • cursor-domain-verification-79pzqf=apL5llssJQZvRMWw1mNYWlFbU
  • facebook-domain-verification=jhuprmc2g42i5oktj12x2hh1jmmdcg
  • figma-domain-verification=38f06650d9e79756474fa91d305793366d509b7d9bd9670d371ce56f5558cf0e-1730838828
  • taegis-domain-verification=7c5ee4843d18499328b28c414266253058781ce7d6762b5377f650fc014026d9
  • SPFv=spf1 ip4:177.19.208.220 include:spf.protection.outlook.com include:spf-00a5b101.pphosted.com -all
  • Dynatrace-site-verification=9f88c49a-ee2b-41fd-8082-175148cce036__m44bg6664a86l2f4h7bhudqhrd
  • Dynatrace-site-verification=b9da8306-ed8e-4e62-9268-e8ba9804d108__rjoufjh8tg9usc43qjdei3d3l0
  • MS=ms33259497
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