Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stimpsons.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 15:46:30 UTC · ↺ Refresh
MX Hostnames
- stimpsons-co-uk.mail.protection.outlook.com
MX Priorities
- stimpsons-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 185.151.30.167 ↩ 185-151-30-167.ptr4.stackcp.net
Mail Server IPs
- 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
- 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
- 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
- 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1033.ui-dns.biz hostmaster.1and1.co.uk 2016041418 28800 7200 604800 300
Primary NS (mname)
ns1033.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.co.uk
Serial
2016041418
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1033.ui-dns.de
ns1033.ui-dns.com
ns1033.ui-dns.biz
ns1033.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.createsend.com include:outbound.mailhop.org -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; sp=quarantine; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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=ms59256855
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.createsend.com include:outbound.mailhop.org -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 stimpsons.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits