Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
extend.com.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 00:47:47 UTC · ↺ Refresh
MX Hostnames
- extend-com-mx.mail.protection.outlook.com
MX Priorities
- extend-com-mx.mail.protection.outlook.com: 0
A / AAAA Records
- 107.180.46.225 ↩ 225.46.180.107.host.secureserver.net
Mail Server IPs
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns03.domaincontrol.com dns.jomax.net 2024050901 28800 7200 604800 600
Primary NS (mname)
pdns03.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024050901
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns04.domaincontrol.com
pdns03.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 include:spf.protection.outlook.com -all
- i6gs6fl6ai7hqf08p4jsb9tg8e
- q3i3crhremtee0iuvbn75428e
- EaXVbJMxZK24TiofjW/zK3zT1VUFpMY7Ma+9wQtWHUsA88dvvSThSA8803tu+nfMzMxnpkYvjxRYX/D9i5Mafg==
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