Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
21digital.agency
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 05:10:40 UTC · ↺ Refresh
MX Hostnames
- mx2.email-cluster.com
- failover1.email-cluster.com
- mx1.email-cluster.com
MX Priorities
- mx2.email-cluster.com: 5
- failover1.email-cluster.com: 10
- mx1.email-cluster.com: 5
A / AAAA Records
- 185.41.10.70 ↩ prime.twentyoneagency.co.uk
Mail Server IPs
- 62.182.17.203 ↩ mx22.email-cluster.com
- 62.182.17.204 ↩ mx23.email-cluster.com
- 109.237.25.170 ↩ failover1.email-cluster.com
- 62.182.17.202 ↩ mx21.email-cluster.com
- 62.182.17.201 ↩ mx20.email-cluster.com
SOA Record
Raw SOA
dns.uk-noc.com sys-admin.uk-noc.com 2026031207 14400 7200 2419200 86400
Primary NS (mname)
dns.uk-noc.com
Admin Email (rname)
sys-admin@uk-noc.com
Serial
2026031207
Refresh
14400s
Retry
7200s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
dns.uk-noc.com
dns.us-noc.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:185.41.10.70 +a +mx +ip4:62.182.20.101 include:relay.mailchannels.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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 ip4:185.41.10.70 +a +mx +ip4:62.182.20.101 include:relay.mailchannels.net ~all
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