Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
htrsi.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 04:33:47 UTC · ↺ Refresh
MX Hostnames
- htrsi-com.mail.eo.outlook.com
MX Priorities
- htrsi-com.mail.eo.outlook.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1761.awsdns-28.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1761.awsdns-28.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1761.awsdns-28.co.uk
ns-34.awsdns-04.com
ns-967.awsdns-56.net
ns-1315.awsdns-36.org
SPF Record
✓ Strict (-all)
v=spf1 include:_hosting_spf.deltagroup.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms14474944
- SPFv=spf1 include:_hosting_spf.deltagroup.com include:spf.protection.outlook.com -all
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