Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mauerinc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 12:37:50 UTC · ↺ Refresh
MX Hostnames
- mauerinc-com.mail.protection.outlook.com
MX Priorities
- mauerinc-com.mail.protection.outlook.com: 1
A / AAAA Records
- 23.236.62.147 ↩ 147.62.236.23.bc.googleusercontent.com
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.phx1.nearlyfreespeech.net hostmaster.nearlyfreespeech.net 1517000296 600 180 86400 180
Primary NS (mname)
ns.phx1.nearlyfreespeech.net
Admin Email (rname)
hostmaster@nearlyfreespeech.net
Serial
1517000296
Refresh
600s
Retry
180s
Expire
86400s
Minimum TTL
180s
Nameservers (NS)
ns.phx1.nearlyfreespeech.net
ns.phx2.nearlyfreespeech.net
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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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