Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sterlingsolutions.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 09:52:00 UTC · ↺ Refresh
MX Hostnames
- d334084b.ess.barracudanetworks.com
- d334084a.ess.barracudanetworks.com
MX Priorities
- d334084a.ess.barracudanetworks.com: 0
- d334084b.ess.barracudanetworks.com: 0
A / AAAA Records
- 34.199.2.227 ↩ ec2-34-199-2-227.compute-1.amazonaws.com
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns51.domaincontrol.com dns.jomax.net 2026031203 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031203
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns52.domaincontrol.com
ns51.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:_spf.smtp.com ip4:50.171.135.154 ip4:159.65.181.238 include:spf.protection.outlook.com include:spf.exclaimer.net include:sendgrid.net include:_spf.act-on.net include:spf.jobdiva.com include:51049990.spf03.hubspotemail.net -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
7 records- SPFv=spf1 include:spf.ess.barracudanetworks.com include:_spf.smtp.com ip4:50.171.135.154 ip4:159.65.181.238 include:spf.protection.outlook.com include:spf.exclaimer.net include:sendgrid.net include:_spf.act-on.net include:spf.jobdiva.com include:51049990.spf03.hubspotemail.net -all
- 2m44snudgl28d93ocqamucasrc
- ps6idl5h576jma54smspjq9990
- 0ed1fe018a2cb6ff8cd58549bbb2e54956dab3646e
- Foxit-domain-verification=4886d7639c5c6698833871e267816e50
- Foxit-domain-verification=503693815eadd6173efeed85596c5285
- apple-domain-verification=DQJwxSO7sIGgFjEd
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