Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rsp.ca
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 23:16:37 UTC · ↺ Refresh
MX Hostnames
- d166820a.ess.barracudanetworks.com
- d166820b.ess.barracudanetworks.com
MX Priorities
- d166820b.ess.barracudanetworks.com: 5
- d166820a.ess.barracudanetworks.com: 0
A / AAAA Records
- 198.185.159.144 (no PTR)
- 198.185.159.145 (no PTR)
- 198.49.23.144 (no PTR)
- 198.49.23.145 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
aaden.ns.cloudflare.com dns.cloudflare.com 2397947667 10000 2400 604800 1800
Primary NS (mname)
aaden.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397947667
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
georgia.ns.cloudflare.com
aaden.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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
2 records- 9khdasbf9fus5jv0h10qalpslg
- SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
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