Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jdheating.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 06:23:17 UTC · ↺ Refresh
MX Hostnames
- jdheating-co-uk.mail.protection.outlook.com
MX Priorities
- jdheating-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 23.236.62.147 ↩ 147.62.236.23.bc.googleusercontent.com
Mail Server IPs
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.livedns.co.uk admin.jdheating.co.uk 1529594712 10800 3600 604800 3600
Primary NS (mname)
ns1.livedns.co.uk
Admin Email (rname)
admin@jdheating.co.uk
Serial
1529594712
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.livedns.co.uk
ns2.livedns.co.uk
ns3.livedns.co.uk
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];ruf=mailto:[email protected];fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
2 records- MS=ms27665111
- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for jdheating.co.uk
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits