Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cortel.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 00:32:09 UTC · ↺ Refresh
MX Hostnames
- cortel-com-br.mail.protection.outlook.com
MX Priorities
- cortel-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.142.114 (no PTR)
- 104.21.94.254 (no PTR)
- 2606:4700:3032::6815:5efe
- 2606:4700:3030::ac43:8e72
Mail Server IPs
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
buck.ns.cloudflare.com dns.cloudflare.com 2396571496 10000 2400 604800 1800
Primary NS (mname)
buck.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396571496
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
buck.ns.cloudflare.com
demi.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:corlink.cortel.com.br include:_spf.rdstation.com.br include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
default._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- google-site-verification=Fw6n2IhTBLk3NLRylFx_oCVfa6jeWLvRK9UJvw-4t98
- google-site-verification=QdaOOgye2skZU3UaMpZ1qJ1Vq1gQ75S7WvKVHMCEY60
- google-site-verification=Yp3b0VXnBs8cAggf7fvR9Jy-WBwqglPTzomdE7kNKys
- google-site-verification=Z5vUs35CKmSBg_fcNqkJ0ZOReZWyJl-GCSO5MXcJh8k
- google-site-verification=aTp6D77zqHavg4-piZMhpGcO70RCHgv78LiWqADzQ1s
- SPFv=spf1 include:spf.protection.outlook.com include:corlink.cortel.com.br include:_spf.rdstation.com.br include:sendgrid.net -all
- MS=35FE3FA4674ACB6C823477DCA14157101DECA611
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