Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cemaco.co.cr
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 07:13:56 UTC · ↺ Refresh
MX Hostnames
- cemaco-co-cr.mail.protection.outlook.com
MX Priorities
- cemaco-co-cr.mail.protection.outlook.com: 1
A / AAAA Records
- 35.168.199.229 ↩ ec2-35-168-199-229.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
dns0.zoneedit.com zone.zoneedit.com 1773158337 2400 360 1209600 300
Primary NS (mname)
dns0.zoneedit.com
Admin Email (rname)
zone@zoneedit.com
Serial
1773158337
Refresh
2400s
Retry
360s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns19.zoneedit.com
ns14.zoneedit.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=r; aspf=r; pct=100; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all
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