Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
reliant-windows.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 20:13:39 UTC · ↺ Refresh
MX Hostnames
- mx4.mtaroutes.com
- mx3.mtaroutes.com
- mx2.mtaroutes.com
- mx1.mtaroutes.com
MX Priorities
- mx3.mtaroutes.com: 30
- mx1.mtaroutes.com: 10
- mx2.mtaroutes.com: 20
- mx4.mtaroutes.com: 40
A / AAAA Records
- 199.16.172.246 (no PTR)
Mail Server IPs
- 38.71.16.244 ↩ fe2-r2-in.la10.l.antispamcloud.com
- 2001:550:2:3::62:100 ↩ fe2-r2-in.la10.l.antispamcloud.com
- 38.89.254.156 ↩ fe1-r2-in.ch03.l.antispamcloud.com
- 2001:550:2:78::ca:100 ↩ fe3-r2-in.atl06.l.antispamcloud.com
- 2001:550:2:61::2fc:100 (no PTR)
- 38.101.250.150 ↩ fe3-r2-in.atl06.l.antispamcloud.com
SOA Record
Raw SOA
ns1.4uh.net root.cp165172.hpdns.net 2026021503 3600 1800 1209600 86400
Primary NS (mname)
ns1.4uh.net
Admin Email (rname)
root@cp165172.hpdns.net
Serial
2026021503
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns4.4uh.net
ns2.4uh.net
ns3.4uh.net
ns1.4uh.net
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:91.238.165.172 include:spf.protection.outlook.com include:spf.hostns.io ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=reject;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=84600;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:91.238.165.172 include:spf.protection.outlook.com include:spf.hostns.io ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for reliant-windows.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits