Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cornerstone-business.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 14:15:53 UTC · ↺ Refresh
MX Hostnames
- d356817a.ess.barracudanetworks.com
- d356817b.ess.barracudanetworks.com
MX Priorities
- d356817a.ess.barracudanetworks.com: 10
- d356817b.ess.barracudanetworks.com: 20
A / AAAA Records
- 34.174.181.10 ↩ 10.181.174.34.bc.googleusercontent.com
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1.siteground.net root.us195.siteground.us 2020030629 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
root@us195.siteground.us
Serial
2020030629
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.siteground.net
ns1.siteground.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_spf.psm.knowbe4.com include:_spf.cornerstone-business_com._d.easydmarc.pro ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; pct=100; fo=1
⚠ 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
2 records- ppe-1d270a5f70baa352110023bac0a783a7d3ee09ba
- SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_spf.psm.knowbe4.com include:_spf.cornerstone-business_com._d.easydmarc.pro ~all
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