Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
addvent.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 21:42:58 UTC · ↺ Refresh
MX Hostnames
- mailcluster.zen.co.uk
MX Priorities
- mailcluster.zen.co.uk: 10
A / AAAA Records
- 35.172.94.1 ↩ staticip.multiscreensite.com
Mail Server IPs
- 212.23.3.121 ↩ bastion02.mail.zen.net.uk
- 212.23.6.67 ↩ bastion04.mail.zen.net.uk
SOA Record
Raw SOA
ns0.zen.co.uk netman.zen.co.uk 2023070644 14400 1800 604800 86400
Primary NS (mname)
ns0.zen.co.uk
Admin Email (rname)
netman@zen.co.uk
Serial
2023070644
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.zen.co.uk
ns0.zen.co.uk
SPF Record
✓ Strict (-all)
v=spf1 +mx +a +ip4:82.71.205.2 +include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 +mx +a +ip4:82.71.205.2 +include:spf.protection.outlook.com -all
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