Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dsierra.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 01:31:53 UTC · ↺ Refresh
MX Hostnames
- mx1.serviunix.com
- mx.serviunix.com
MX Priorities
- mx1.serviunix.com: 5
- mx.serviunix.com: 5
A / AAAA Records
- 69.12.86.90 ↩ server.dsierra1.com
Mail Server IPs
- 181.48.186.3 ↩ mx1.serviunix.com
- 181.143.111.11 ↩ mx.serviunix.com
SOA Record
Raw SOA
ns1.cdmon.net hostmaster.dsierra.com 1 10800 3600 604800 3600
Primary NS (mname)
ns1.cdmon.net
Admin Email (rname)
hostmaster@dsierra.com
Serial
1
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.cdmon.net
ns1.cdmon.net
ns5.cdmondns-01.com
ns4.cdmondns-01.org
ns2.cdmon.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:relay.serviunix.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0; adkim=r; aspf=s; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:relay.serviunix.com ~all
Full email verification for dsierra.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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