Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hrfirst.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 14:12:22 UTC · ↺ Refresh
MX Hostnames
- mx.stackmail.com
MX Priorities
- mx.stackmail.com: 10
A / AAAA Records
- 185.151.30.125 ↩ 185-151-30-125.ptr4.stackcp.net
- 2a07:7800::125 (no PTR)
Mail Server IPs
- 185.151.28.67 ↩ mx.stackmail.com
SOA Record
Raw SOA
ns1.stackdns.com hostmaster.stackdns.com 1762678134 1800 900 1209600 300
Primary NS (mname)
ns1.stackdns.com
Admin Email (rname)
hostmaster@stackdns.com
Serial
1762678134
Refresh
1800s
Retry
900s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns3.stackdns.com
ns4.stackdns.com
ns1.stackdns.com
ns2.stackdns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ontinuity.co.uk include:_spf.iomartmail.com include:spf.stackmail.com ip4:62.233.120.35 ip4:84.22.163.54 a mx -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;rf=afrf;ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.ontinuity.co.uk include:_spf.iomartmail.com include:spf.stackmail.com ip4:62.233.120.35 ip4:84.22.163.54 a mx -all
- google-site-verification=RGW9lXpoHQR-4CEoaDrGS0BuEzgOn-SPJP74PJT80C8
- google-site-verification=c5-vpcn8M6acOpDo2g3bZgglU0qacLD2hbYLF1GCNNA
Full email verification for hrfirst.co.uk
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits