Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cosan.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 20:04:30 UTC · ↺ Refresh
MX Hostnames
- cosan-com.mail.protection.outlook.com
MX Priorities
- cosan-com.mail.protection.outlook.com: 0
A / AAAA Records
- 34.230.121.250 ↩ ec2-34-230-121-250.compute-1.amazonaws.com
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-32.azure-dns.com hostmaster.cosan.com 758 900 600 86400 3600
Primary NS (mname)
ns1-32.azure-dns.com
Admin Email (rname)
hostmaster@cosan.com
Serial
758
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
ns1-32.azure-dns.com
ns2-32.azure-dns.net
ns3-32.azure-dns.org
ns4-32.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 ip4:177.67.63.111 ip4:159.183.111.33 a:mx37.minhati.com.br ip4:177.67.63.0/24 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:149.96.133.2 ip4:149.96.132.2 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; ri=3600; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- MS=ms53124480
- b/QdxIGiheUsHaO2soeyaA8eXhZf+VpF/sUYEQK8YD8vd+86e1j0NpE/B6DzVmcztYQGsu6+kXg3Gs7cZpeCYg==
- K2abGkTS6jsFxjbjAW4ot4cw6pgF7DDEnxLTsI3DZe+urBI5UE7+H+IShHd4cd8rctERv3phjfaNWv4fjAOwNQ==
- workplace-domain-verification=BLliUDX0MPnQJesf8uPSTI36foDPEb
- knowbe4-site-verification=edd50a045b8597f696630b93c8c13fdf
- H1LS9RE10OFFFF1JM9RODC15TL06NAIAXFWE6OKR
- @
- SPFv=spf1 ip4:177.67.63.111 ip4:159.183.111.33 a:mx37.minhati.com.br ip4:177.67.63.0/24 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:149.96.133.2 ip4:149.96.132.2 -all
Full email verification for cosan.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits