Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gertec.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 04:51:19 UTC · ↺ Refresh
MX Hostnames
- gertec-com-br.mail.protection.outlook.com
MX Priorities
- gertec-com-br.mail.protection.outlook.com: 10
A / AAAA Records
- 192.124.249.65 ↩ cloudproxy10065.sucuri.net
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1896.awsdns-45.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1896.awsdns-45.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-121.awsdns-15.com
ns-1896.awsdns-45.co.uk
ns-640.awsdns-16.net
ns-1180.awsdns-19.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:200.254.216.90 include:spf.protection.outlook.com include:_spf.rdstation.com.br include:sendgrid.net include:infosecmail.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=60; rua=mailto:[email protected]; rf=afrf; fo=0
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 60% of failing messages only
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
6 records- canva-site-verification=3nQYlgE9NH65l0B7GNsmUA
- google-site-verification=iuE1nBA_uK2d5t_ktzRt43vWps67tUv4I4XsXkoCH10
- SPFv=spf1 ip4:200.254.216.90 include:spf.protection.outlook.com include:_spf.rdstation.com.br include:sendgrid.net include:infosecmail.net -all
- MS=ms58900469
- amazonses:McoFw+XygvPpvb/OcyzF5x036ELWmDFCpOxfKAvRXOw=
- atlassian-domain-verification=ptxgdVHSfI7bbgjrD3zqNOE+LHmwxqf/AAluogYbEj2JIwclnuhNVE7biX9zgBFc
Full email verification for gertec.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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