Domain Overview
DNS: ✓ 16d ago
Checker: ✓ 16d ago
mastinseguridad.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-25 05:58:19 UTC · ↺ Refresh
MX Hostnames
- mastinseguridad-com.mail.protection.outlook.com
MX Priorities
- mastinseguridad-com.mail.protection.outlook.com: 0
A / AAAA Records
- 190.8.176.106 ↩ aurea.colombiahosting.com.co
Mail Server IPs
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.colombiahosting.com alexander.colombiahosting.com.co 2026052501 3600 1800 1209600 86400
Primary NS (mname)
ns1.colombiahosting.com
Admin Email (rname)
alexander@colombiahosting.com.co
Serial
2026052501
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.colombiahosting.com
ns4.colombiahosting.com
ns2.colombiahosting.com
ns3.colombiahosting.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:190.8.176.106 +ip4:45.56.100.107 +include:_spf.mlsend.com +include:spf.protection.outlook.com +include:portal.mastinseguridad.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
4 records- zoho-verification=zb55119831.zmverify.zoho.com
- MS=ms13638968
- google-site-verification=MYu9UBO0bl2u9ztXBgP6kkv1aAAo1Qou6n47rHNa-C8
- SPFv=spf1 +a +mx +ip4:190.8.176.106 +ip4:45.56.100.107 +include:_spf.mlsend.com +include:spf.protection.outlook.com +include:portal.mastinseguridad.com -all
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