Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zircom.uk.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 16:30:39 UTC · ↺ Refresh
MX Hostnames
- zircom-uk-com.mail.protection.outlook.com
MX Priorities
- zircom-uk-com.mail.protection.outlook.com: 5
A / AAAA Records
- 167.71.136.27 (no PTR)
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.heartinternet.uk hostmaster.mainnameserver.com 2026030647 10800 600 2419200 3600
Primary NS (mname)
ns.heartinternet.uk
Admin Email (rname)
hostmaster@mainnameserver.com
Serial
2026030647
Refresh
10800s
Retry
600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns2.heartinternet.uk
ns.heartinternet.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:212.105.161.185 include:soverin.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ 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
7 records- ij6hub5f2vfs32uc6jd0k2l62r
- google-site-verification=BXoCh8tNoufvz7zzECtnprodE1sCoLpIGiGsrG9XHYY
- u9oi29591atkq1r0ec1vgjfepl
- isuhcaki46cu08u0svo6pboocr
- SPFv=spf1 include:spf.protection.outlook.com ip4:212.105.161.185 include:soverin.net -all
- MS=ms28759503
- CALH04RFG8KNMP9UP82CPH4LCG
Full email verification for zircom.uk.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits