Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
dbroberts.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-18 13:45:19 UTC · ↺ Refresh
MX Hostnames
- heilindelectronics.mail.protection.office365.us
MX Priorities
- heilindelectronics.mail.protection.office365.us: 10
A / AAAA Records
- 45.223.18.231 (no PTR)
- 45.223.28.231 (no PTR)
Mail Server IPs
- 23.103.199.170 ↩ mail-cy1usg020170.inbound.protection.outlook.com
- 23.103.199.138 ↩ mail-bn3usg020138.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.level3.net dnsteam.level3.com 2026042326 3600 300 1209600 3600
Primary NS (mname)
ns3.level3.net
Admin Email (rname)
dnsteam@level3.com
Serial
2026042326
Refresh
3600s
Retry
300s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns3.level3.net
ns4.level3.net
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.serverdata.net include:spf.protection.office365.us include:22068693.spf05.hubspotemail.net include:docebosaas.com include:spf_c.oraclecloud.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- anthropic-domain-verification-ka8h50=hNKxC9WWyGp2baINcHofvsnHZ
- globalsign-domain-verification=0B638AC140679EAC992921400F30953A
- MS=ms36507459
- smartsheet-site-validation=L05HSqwWrmlrOg4Q5OFew18SD7DRY_dN
- duo_sso_verification=6GiwL5mGHK13KbYqxyBnvhKh4QWiwAQtfTmBfrf0S6XX8QHW6sAnUlRFM2JGEJOn
- globalsign-domain-verification=C5D664D840CFC6552918623E73BB4894
- Visit www.dbroberts.com for information about DB Roberts products and services
- ppe-b15164ffca97c16ff99b
- SPFv=spf1 mx include:spf.serverdata.net include:spf.protection.office365.us include:22068693.spf05.hubspotemail.net include:docebosaas.com include:spf_c.oraclecloud.com -all
Full email verification for dbroberts.com
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