Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
derwentlondon.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:45:38 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-2.mimecast.com
MX Priorities
- eu-smtp-inbound-2.mimecast.com: 10
- eu-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 51.104.28.68 (no PTR)
- 134.213.17.2 (no PTR)
Mail Server IPs
- 195.130.217.241 ↩ eu-smtp-inbound-2.mimecast.com
- 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.211 ↩ 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
- 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns1.netnames.net hostmaster.cscdns.net 2018073111 10800 1800 3600000 86400
Primary NS (mname)
ns1.netnames.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2018073111
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.netnames.net
ns1.netnames.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:46.243.56.31 include:spf.protection.outlook.com include:mail.zendesk.com include:eu._netblocks.mimecast.com include:spf.exclaimer.net include:miraqle.com include:servers.mcsv.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; adkim=s; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- atlassian-domain-verification=5nOwz0e4nUWPtV2xY6kCijLIVIuHuJH5wdD4TcTY+VnfGJfqtUn9cJZjgWutA+jd
- SPFv=spf1 ip4:46.243.56.31 include:spf.protection.outlook.com include:mail.zendesk.com include:eu._netblocks.mimecast.com include:spf.exclaimer.net include:miraqle.com include:servers.mcsv.net ~all
- MS=ms33670404
- proxy-ssl.webflow.com
- 77fb007a62674c03af3823e55678c685
- apple-domain-verification=SyY0meRUglWxfPQP
- canva-site-verification=QEwP9qCADYPk8U-whLXnWA
- facebook-domain-verification=bmi9o0t85ysxsnra89ofbmxffzdc47
- google-site-verification=6BFI23Pq_MQN2KeYy97T5hgdR-kxcBI20Ga432G8E_Y
- _globalsign-domain-verification=68XEpCP-pXf0iBTVAHXcPTOjkeHykQauL7pSVPRDlc
- Hx/7INxvUlfUqrBemkS30rl66zSJ4LqvB6xTKlF6rdCEDAdakaXZQSE0Ys61IfEjuDfkIFtVj/WAxuu9yAol6w==
- sophos-domain-verification=8f6b43b8ef3815d69eee96b2d0c1f7d618dbf94430b69af19c34e319f06a73da
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