Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thompsonpackaging.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 08:36:06 UTC · ↺ Refresh
MX Hostnames
- st2.mx.email-filter.net
- st3.mx.email-filter.net
MX Priorities
- st3.mx.email-filter.net: 20
- st2.mx.email-filter.net: 10
A / AAAA Records
- 91.204.209.37 ↩ sapphire.premium.hostns.io
Mail Server IPs
- 194.176.124.242 ↩ st4.mx.email-filter.net
- 84.18.194.42 ↩ st0.mx.email-filter.net
SOA Record
Raw SOA
ns0.portfast.net hostmaster.portfast.net 25 604800 86400 2419200 3600
Primary NS (mname)
ns0.portfast.net
Admin Email (rname)
hostmaster@portfast.net
Serial
25
Refresh
604800s
Retry
86400s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns0.portfast.net
ns2.portfast.net.uk
ns1.portfast.net
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; sp=quarantine; adkim=s; aspf=s; pct=100; fo=0; rf=afrf; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
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- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=D2C7rQJpmr-H-XFnq712vm6MRq5BekZaB3ieZxAGCZk
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