Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stt-solutions.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 09:49:56 UTC · ↺ Refresh
MX Hostnames
- sttsolutions-com0i.mail.protection.outlook.com
MX Priorities
- sttsolutions-com0i.mail.protection.outlook.com: 0
A / AAAA Records
- 116.203.167.6 ↩ ns3.colombiasolutions.com
Mail Server IPs
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.colombiasolutions.com root.sd1990.colombiasolutions.com 2026031100 3600 1800 1209600 86400
Primary NS (mname)
ns1.colombiasolutions.com
Admin Email (rname)
root@sd1990.colombiasolutions.com
Serial
2026031100
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.colombiasolutions.com
ns1.colombiasolutions.com
ns3.colombiasolutions.com
ns4.colombiasolutions.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:116.203.167.6 +ip4:116.202.4.191 +ip4:116.203.84.92 +ip4:198.100.157.198 +ip4:198.27.126.138 +ip4:198.27.87.105 +ip4:167.114.171.82 include:spf.protection.outlook.com include:43929099.spf07.hubspotemail.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 6 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._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
3 records- SPFv=spf1 +a +mx +ip4:116.203.167.6 +ip4:116.202.4.191 +ip4:116.203.84.92 +ip4:198.100.157.198 +ip4:198.27.126.138 +ip4:198.27.87.105 +ip4:167.114.171.82 include:spf.protection.outlook.com include:43929099.spf07.hubspotemail.net ~all
- google-site-verification=7Gq0q5p4hdHHlzgRt0q3_GqWKjkRXP1g6i1adZ7PtwU
- google-site-verification=4sAJiABHG_eQQgG_MTMg6u2Zx5wwhAPmTCGGkiZhXYs
Full email verification for stt-solutions.com
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