Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
calderonbarton.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 17:21:18 UTC · ↺ Refresh
MX Hostnames
- calderonbarton-com.mail.protection.outlook.com
MX Priorities
- calderonbarton-com.mail.protection.outlook.com: 0
A / AAAA Records
- 135.148.23.142 ↩ ip142.ip-135-148-23.us
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.reclaimhosting.com info.reclaimhosting.com 2023121701 3600 1800 1209600 86400
Primary NS (mname)
ns1.reclaimhosting.com
Admin Email (rname)
info@reclaimhosting.com
Serial
2023121701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.reclaimhosting.com
ns1.reclaimhosting.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:135.148.23.142 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
✓ 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
2 records- MS=ms32284156
- SPFv=spf1 ip4:135.148.23.142 include:spf.protection.outlook.com -all
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