Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coltek.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 03:01:27 UTC · ↺ Refresh
MX Hostnames
- coltek-com-co.mail.protection.outlook.com
MX Priorities
- coltek-com-co.mail.protection.outlook.com: 0
A / AAAA Records
- 65.181.111.181 ↩ s1114.use1.mysecurecloudhost.com
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.mysecurecloudhost.com servers.mysecurecloudhost.com 2026040200 3600 1800 1209600 86400
Primary NS (mname)
ns1.mysecurecloudhost.com
Admin Email (rname)
servers@mysecurecloudhost.com
Serial
2026040200
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns4.mysecurecloudhost.com
ns3.mysecurecloudhost.com
ns1.mysecurecloudhost.com
ns2.mysecurecloudhost.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:65.181.111.181 include:spf.mysecurecloudhost.com ip4:50.31.134.63 include:spf.antispamcloud.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
3 records- MS=ms39886176
- google-site-verification=e9NDDlYGPuOcAy7FcerKgKXK8RA2qKNAiovNLyofrBE
- SPFv=spf1 ip4:65.181.111.181 include:spf.mysecurecloudhost.com ip4:50.31.134.63 include:spf.antispamcloud.com include:spf.protection.outlook.com -all
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