Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ifs.edu.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 08:38:07 UTC · ↺ Refresh
MX Hostnames
- ifs-edu-br.mail.protection.outlook.com
MX Priorities
- ifs-edu-br.mail.protection.outlook.com: 0
A / AAAA Records
- 200.133.48.21 (no PTR)
Mail Server IPs
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
texas.ifs.edu.br webmaster.ifs.edu.br 2025221237 1200 720 1209600 86400
Primary NS (mname)
texas.ifs.edu.br
Admin Email (rname)
webmaster@ifs.edu.br
Serial
2025221237
Refresh
1200s
Retry
720s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
sigma.ifs.edu.br
texas.ifs.edu.br
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:200.133.48.0/24 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- _globalsign-domain-verification=-mPz6PReCQXH-9NTsvNNqFCS8emhrX8c0tvsygaGhL
- SPFv=spf1 include:spf.protection.outlook.com ip4:200.133.48.0/24 -all
- MS=ms83548618
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