Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dukesplumbing.ca
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 01:05:01 UTC · ↺ Refresh
MX Hostnames
- mail4.linknowmedia.cloud
- mail3.linknowmedia.cloud
MX Priorities
- mail3.linknowmedia.cloud: 0
- mail4.linknowmedia.cloud: 0
A / AAAA Records
- 208.94.107.8 ↩ web3.linknowmedia.com
Mail Server IPs
- 208.94.107.75 ↩ mail3.linknowmedia.cloud
- 15.222.161.152 ↩ ec2-15-222-161-152.ca-central-1.compute.amazonaws.com
SOA Record
Raw SOA
ns1.linknowmedia.com sysadmin.linknowmedia.com 2026020301 3600 1800 1209600 86400
Primary NS (mname)
ns1.linknowmedia.com
Admin Email (rname)
sysadmin@linknowmedia.com
Serial
2026020301
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.linknowmedia.com
ns1.linknowmedia.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:208.94.107.8 ip4:192.175.104.8 include:relayhost1.linknowmedia.cloud include:relayhost2.linknowmedia.cloud include:sendgrid.net +a +mx ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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 ip4:208.94.107.8 ip4:192.175.104.8 include:relayhost1.linknowmedia.cloud include:relayhost2.linknowmedia.cloud include:sendgrid.net +a +mx ~all
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