Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jfk.com.co
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 03:53:35 UTC · ↺ Refresh
MX Hostnames
- cluster9a.us.messagelabs.com
- cluster9.us.messagelabs.com
MX Priorities
- cluster9.us.messagelabs.com: 10
- cluster9a.us.messagelabs.com: 20
A / AAAA Records
- 176.100.178.7 (no PTR)
Mail Server IPs
- 67.219.250.220 ↩ mail946.messagelabs.com
- 67.219.247.111 ↩ mail924.messagelabs.com
- 67.219.250.219 ↩ mail952.messagelabs.com
- 67.219.246.213 ↩ mail912.messagelabs.com
- 67.219.246.219 ↩ mail905.messagelabs.com
- 67.219.247.207 ↩ mail932.messagelabs.com
- 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com
SOA Record
Raw SOA
nameserver01.mi.com.co hostmaster.jfk.com.co 2026031204 10800 3600 1209600 3600
Primary NS (mname)
nameserver01.mi.com.co
Admin Email (rname)
hostmaster@jfk.com.co
Serial
2026031204
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nameserver02.mi.com.co
nameserver04.mi.com.co
nameserver01.mi.com.co
nameserver03.mi.com.co
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mailjet.com include:_spf.mailgun.org include:messagelabs.com include:_spf.google.com ip4:190.90.160.165 ip4:190.90.160.173 ip4:179.50.91.41 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;fo=1;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
default._domainkey
dkim._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
1 record- SPFv=spf1 include:spf.mailjet.com include:_spf.mailgun.org include:messagelabs.com include:_spf.google.com ip4:190.90.160.165 ip4:190.90.160.173 ip4:179.50.91.41 ~all
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