Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
emtelco.com.co
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 22:57:14 UTC · ↺ Refresh
MX Hostnames
- smtp.emtelco.com.co
- emtelco.in.tmes.trendmicro.com
MX Priorities
- smtp.emtelco.com.co: 10
- emtelco.in.tmes.trendmicro.com: 200
A / AAAA Records
- 166.117.81.219 ↩ ad79dfc581895e777.awsglobalaccelerator.com
Mail Server IPs
- 200.13.225.134 ↩ smtp.emtelco.com.co
- 18.208.22.78 ↩ in.tmes.trendmicro.com
- 18.208.22.77 ↩ in.tmes.trendmicro.com
- 18.208.22.80 ↩ in.tmes.trendmicro.com
- 18.208.22.79 ↩ in.tmes.trendmicro.com
SOA Record
Raw SOA
jason.ns.cloudflare.com dns.cloudflare.com 2399866811 10000 2400 604800 1800
Primary NS (mname)
jason.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399866811
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mia.ns.cloudflare.com
jason.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx a:emtelco.com.co ip4:200.13.225.141 ip4:200.31.192.35 ip4:200.31.192.34 ip4:190.248.54.101 ip4:201.232.123.68 ip4:200.13.237.42 ip4:200.13.237.43 ip4:200.13.237.44 ip4:200.13.237.45 ip4:200.13.237.46 ip4:201.232.123.67 ip4:54.86.63.64/26 ip4:54.219.188.0/26 ip4:54.219.191.0/25 include:spfip.emtelco.com.co include:spf.protection.outlook.com include:email-od.com include:spf.fromdoppler.com include:spf-us.tmes.trendmicro.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; fo=d:s; pct=100; ri=21600; adkim=r; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
6 records- doppler-site-verification=527220
- duo_sso_verification=qZM6Z00kxeSpHSCYa1LDfaifagBJwZObE5OlZYQ2nVCVgiehltHJ9Z6qKnHoUbPI
- google-gws-recovery-domain-verification=45693731
- SPFv=spf1 a mx a:emtelco.com.co ip4:200.13.225.141 ip4:200.31.192.35 ip4:200.31.192.34 ip4:190.248.54.101 ip4:201.232.123.68 ip4:200.13.237.42 ip4:200.13.237.43 ip4:200.13.237.44 ip4:200.13.237.45 ip4:200.13.237.46 ip4:201.232.123.67 ip4:54.86.63.64/26 ip4:54.219.188.0/26 ip4:54.219.191.0/25 include:spfip.emtelco.com.co include:spf.protection.outlook.com include:email-od.com include:spf.fromdoppler.com include:spf-us.tmes.trendmicro.com -all
- 2csb1kSZNUXTzwCIz9OtrivtzvCUnuGqtPQWVJvxTYameuKdA6U6yJRKcJxY8/eS2GX4IIRxenorKPAmt2rkIQ==
- MS=ms56123395
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