Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
jacco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-19 02:02:35 UTC · ↺ Refresh
MX Hostnames
- jacco-com.mail.protection.outlook.com
MX Priorities
- jacco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.71.233.185 ↩ 185.233.71.198.host.secureserver.net
Mail Server IPs
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-03.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2-03.azure-dns.net
ns3-03.azure-dns.org
ns4-03.azure-dns.info
ns1-03.azure-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_u.jacco.com._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- anthropic-domain-verification-871cr3=wr4MnxtcnwMBJTMePZqUo1uOy
- SPFv=spf1 include:_u.jacco.com._spf.smart.ondmarc.com ~all
Full email verification for jacco.com
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