Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heffner.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 08:07:35 UTC · ↺ Refresh
MX Hostnames
- heffner-ca.mail.protection.outlook.com
MX Priorities
- heffner-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 162.159.140.201 (no PTR)
Mail Server IPs
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:universalSpf.org ~include:x.universalSpf.org include:_spf.smtp.com include:_spf.psm.knowbe4.com include:edealer.ca include:email-od.com include:spf.protection.outlook.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
dkim._domainkey
s1._domainkey
s2._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
5 records- google-site-verification=6QSy2FPRM6JR3MlDhPa_47mt_vmPx18c2S4U4NCXNHQ
- google-site-verification=PigA2L4UOpjD8AXqWwfLHc_u8t_QeY5ZnM5f5ITo_Gc
- google-site-verification=Ew-LaRw7FXEMe2t0hyTRF7f0ufJiuLHtNpkiLEj38Cc
- SPFv=spf1 include:universalSpf.org ~include:x.universalSpf.org include:_spf.smtp.com include:_spf.psm.knowbe4.com include:edealer.ca include:email-od.com include:spf.protection.outlook.com -all
- mscid=htw+AS0+FfgvPpBfEdWD86F5ZOwCqo+1/MX4Ime4v4PIqxF88F7RuHsUZBzEvAm13/Qi02Eto262vJuk0zOmGg==
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