Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbusorg.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 00:53:38 UTC · ↺ Refresh
MX Hostnames
- d237250b.ess.barracudanetworks.com
- d237250a.ess.barracudanetworks.com
MX Priorities
- d237250a.ess.barracudanetworks.com: 0
- d237250b.ess.barracudanetworks.com: 10
A / AAAA Records
- 104.131.16.231 ↩ do-nyc-7.sharpinnovations.com
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
dns0.zoneedit.com zone.zoneedit.com 1770820188 43200 10800 604800 300
Primary NS (mname)
dns0.zoneedit.com
Admin Email (rname)
zone@zoneedit.com
Serial
1770820188
Refresh
43200s
Retry
10800s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1.zoneedit.com
t2.zoneedit.com
ns2.zoneedit.com
ns17.zoneedit.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com include:spf.ess.barracudanetworks.com include:autotask.net include:spf.salesforce.com include:sendgrid.net ip4:103.47.206.105 ip4:104.131.16.231 ip4:74.109.0.66 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
11 records- remarkable-domain-verification=d9eda7cf-6532-4088-a160-8be5d136e79f
- MgGum0itscQe9T5TucL
- gmfo6o1mcli5d54141irjug7c7
- SPFv=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com include:spf.ess.barracudanetworks.com include:autotask.net include:spf.salesforce.com include:sendgrid.net ip4:103.47.206.105 ip4:104.131.16.231 ip4:74.109.0.66 -all
- sh1envuf6h9eghcmtu8fn3dbui
- apple-domain-verification=Q6ttZepFxs56Wdpx
- NM65z9gv70Ms
- NM65z9gv70Ms/MgGum0itscQe9T5TucL/MKrdio1Cb7iQjeSiD7t2RyEZwBBhfJ18vLobjiuTFNIIKVhSBKadg==
- google-site-verification=oNps_YsFrDvWhNVXtobIRUpt5fEK9ByZHcRVZXtkYLQ
- google-gws-recovery-domain-verification=64056974
- MKrdio1Cb7iQjeSiD7t2RyEZwBBhfJ18vLobjiuTFNIIKVhSBKadg==
Full email verification for columbusorg.com
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