Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
howebrothers.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:39:01 UTC · ↺ Refresh
MX Hostnames
- howebrothers-com.mail.protection.outlook.com
MX Priorities
- howebrothers-com.mail.protection.outlook.com: 10
A / AAAA Records
- 216.110.144.186 ↩ id144186.securedata.net
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
adns.cs.onr.siteprotect.com hostmaster.howebrothers.com 2021121007 172800 900 1209600 3600
Primary NS (mname)
adns.cs.onr.siteprotect.com
Admin Email (rname)
hostmaster@howebrothers.com
Serial
2021121007
Refresh
172800s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
bdns.cs.siteprotect.com
adns.cs.siteprotect.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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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