Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iesacr.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 21:59:36 UTC · ↺ Refresh
MX Hostnames
- iesacr-com.mail.protection.outlook.com
MX Priorities
- iesacr-com.mail.protection.outlook.com: 0
A / AAAA Records
- 143.202.160.166 ↩ sjo2-web02.impulsahosting.com
- 2803:6900:602:cafe::4329 ↩ sjo2-web02.impulsahosting.com
Mail Server IPs
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns4.impulsahosting.com alerts.impulsait.com 2025082100 3600 1800 1209600 86400
Primary NS (mname)
ns4.impulsahosting.com
Admin Email (rname)
alerts@impulsait.com
Serial
2025082100
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns4.impulsahosting.com
ns2.impulsahosting.com
ns1.impulsahosting.com
ns3.impulsahosting.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:143.202.160.167 include:impulsahosting.com a include:spf.protection.outlook.com include:spf.smtp2go.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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- SPFv=spf1 ip4:143.202.160.167 include:impulsahosting.com a include:spf.protection.outlook.com include:spf.smtp2go.com -all
- DMARCv=DMARC1;p=reject;sp=reject;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
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