Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stonebridgegroup.co.uk
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 07:20:55 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-2.mimecast.com
MX Priorities
- eu-smtp-inbound-1.mimecast.com: 10
- eu-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 199.16.172.238 (no PTR)
Mail Server IPs
- 91.220.42.241 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.241 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
- 91.220.42.201 ↩ eu-smtp-inbound-2.mimecast.com
- 91.220.42.211 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.201 ↩ eu-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
carl.ns.cloudflare.com dns.cloudflare.com 2398540811 10000 2400 604800 1800
Primary NS (mname)
carl.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398540811
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
carl.ns.cloudflare.com
carlane.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:eu._netblocks.mimecast.com include:spf.protection.outlook.com include:mailgun.org include:spf.mandrillapp.com include:spf.sendinblue.com include:spf-uk.emailsignatures365.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
17 records- _gm80jl51jay8hoby11c57sh5tihyt6l
- _nkzc8tyz30ervf05r4lldkmlqsq9ua3
- ca3-3e2ceb8c7a7d4c8a918ab6659324fd06
- cursor-domain-verification-gxyx6c=X2972sKg5aNshRSIqE4PLVbzw
- google-site-verification=C59qJRxjWJz-N8FGnkuZwGO0mXT88W6-M8zWlMDKab4
- knowbe4-site-verification=b1b7cd4598ae500c71dd53d85ec3ae38
- mandrill_verify.qzFUZUnOdO5a6UM1OmfuCw
- site24x7-signals-domain-verification=6171348c09ddb02e019fa12ebe8541de
- SPFv=spf1 include:eu._netblocks.mimecast.com include:spf.protection.outlook.com include:mailgun.org include:spf.mandrillapp.com include:spf.sendinblue.com include:spf-uk.emailsignatures365.com -all
- workplace-domain-verification=O2rdcZHvREgCd0JUHVNrMMYowAQ2Bm
- workplace-domain-verification=szskYL0ioIsBsu8lzKQRIFRheaGH7J
- 0ed1fe018ab8238f66008b4c8ca08f16366aa5922f
- 5n34jzynbxtvmwmtvk93jtwh2jfprct7
- EV0PVV3S8W
- Sendinblue-code:7cbe59de725c487bfc9cddf8783b3a94
- _dlj6xcg7uscc91aiff21u1ll7p9jxc0
- _esesbbwkhiiafw6hy3kzqxv37vv6akz
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 stonebridgegroup.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits