Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sunheating.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 13:05:53 UTC · ↺ Refresh
MX Hostnames
- sunheating-com.mail.protection.outlook.com
MX Priorities
- sunheating-com.mail.protection.outlook.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.4netaccess.com support.servdns.com 2026030202 86400 3600 777600 3600
Primary NS (mname)
ns1.4netaccess.com
Admin Email (rname)
support@servdns.com
Serial
2026030202
Refresh
86400s
Retry
3600s
Expire
777600s
Minimum TTL
3600s
Nameservers (NS)
ns2.4netaccess.com
ns1.4netaccess.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; pct=100; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 include:spf.protection.outlook.com -all
- ppe-207ee4e41b2c6f0b70d0
- facebook-domain-verification=hrwko1ejfoeedc2j12utwclqeh2bft
- apple-domain-verification=JFsO713iDmhZndoZ
- MS=ms93381551
Full email verification for sunheating.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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