Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sigmais.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 04:02:14 UTC · ↺ Refresh
MX Hostnames
- sigmais-com-br.mail.protection.outlook.com
MX Priorities
- sigmais-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 152.53.241.189 ↩ node2.4leads.ag
Mail Server IPs
- 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
- 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
- 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-34.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-34.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-34.azure-dns.com
ns2-34.azure-dns.net
ns3-34.azure-dns.org
ns4-34.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:node1.4leads.com.br include:node2.4leads.com.br -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- MS=ms30541402
- DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQChFJgbCIgec/kDIQi2wkix0aC/t057L9J9NDC4GvtMfpK7ley5CCTERnQ1bZwwvSXOaSrEGvuiRdbcd95VK3t1qqOPC7FFxTSe1q7TlvIjAwxcq7k01VqxyQQTrUz68sQbKx+wda0hRUJ9n38Nv2lsQ8mwE5DOwEl3rHrsgqQdbwIDAQAB
- postman-domain-verification=32d7b183e585b0d1eb16b19ed37565a8121f6dcdf4e8d0a14bb2c854f8ad6874525d73018643ae602a2c74db7914b77e398ebc0aae61bbec82fd677e92c5be62
- SPFv=spf1 include:spf.protection.outlook.com include:node1.4leads.com.br include:node2.4leads.com.br -all
- _zdhlzvxtxcmgbxu6ite7qq7cixr578t
- google-site-verification=5Fgr-ZH1_HSDTKzqVOHmM26xSUDnAfdAglOBwSmHmJM
Full email verification for sigmais.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits