Domain Overview
DNS: ✓ 5h ago
Checker: ✓ 5h ago
lynum.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 16:51:24 UTC · ↺ Refresh
MX Hostnames
- d406279.a.ess.ca.barracudanetworks.com
- d406279.b.ess.ca.barracudanetworks.com
MX Priorities
- d406279.b.ess.ca.barracudanetworks.com: 20
- d406279.a.ess.ca.barracudanetworks.com: 10
A / AAAA Records
- 208.109.244.141 ↩ 141.244.109.208.host.secureserver.net
Mail Server IPs
- 15.222.16.211 ↩ mail.ess.ca.barracuda.com
- 15.222.16.210 ↩ mail.ess.ca.barracuda.com
- 15.222.16.209 ↩ mail.ess.ca.barracuda.com
SOA Record
Raw SOA
ns31.domaincontrol.com dns.jomax.net 2025121600 28800 7200 604800 600
Primary NS (mname)
ns31.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025121600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns31.domaincontrol.com
ns32.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for lynum.com
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