Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firstlease.com.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 13:46:42 UTC · ↺ Refresh
MX Hostnames
- firstlease-com-mx.mail.protection.outlook.com
MX Priorities
- firstlease-com-mx.mail.protection.outlook.com: 0
A / AAAA Records
- 66.7.222.66 ↩ server2.estrategiasdigitales.mx
Mail Server IPs
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
SOA Record
Raw SOA
dns31674.dizinc.com mduran.estrategiasdigitales.com.mx 2026021201 3600 1800 1209600 86400
Primary NS (mname)
dns31674.dizinc.com
Admin Email (rname)
mduran@estrategiasdigitales.com.mx
Serial
2026021201
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns31675.dizinc.com
dns31674.dizinc.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:66.7.222.66 +include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:66.7.222.66 +include:spf.protection.outlook.com -all
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