Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
adtech.com.co
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 13:17:25 UTC · ↺ Refresh
MX Hostnames
- mx03.mi.com.co
- mx01.mi.com.co
MX Priorities
- mx01.mi.com.co: 10
- mx03.mi.com.co: 5
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 200.25.12.146 ↩ smtp-out-1014.mi.com.co
- 200.25.12.145 ↩ smtp-out-1013.mi.com.co
SOA Record
Raw SOA
nameserver01.mi.com.co hostmaster.adtech.com.co 1775088000 10800 3600 1209600 3600
Primary NS (mname)
nameserver01.mi.com.co
Admin Email (rname)
hostmaster@adtech.com.co
Serial
1775088000
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nameserver02.mi.com.co
nameserver01.mi.com.co
nameserver04.mi.com.co
nameserver03.mi.com.co
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.mi.com.co ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];pct=100;ruf=mailto:[email protected];fo=0:d:s;aspf=s;adkim=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwyAcRLXQZCwnJH8rnuYX2JiM0scJJZMqb23kr57fyO9SP3OmvA/wZMZf8LyAxqh4gNcAlIfd1acmAdPjc9tUD6Ck8/xCEjXBwbmuRvnxKx4VvoFJ0INpo5/rKpBHnfpcnxIjBtvQ+NsJ7XPWtxqK7cc13bKJAR3j+/odBWfegt4TtEef2ZKkXBS0S3jSntrYX770u2eXhc7Vfd
- SPFv=spf1 include:_spf.mi.com.co ~all
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