calcomsec.com

Valid Email Server
Domain Lookup › calcomsec.com

Domain Overview

DNS: ✓ 1h ago Checker: ✓ 1h ago
calcomsec.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-08-19 05:13:57 UTC · ↺ Refresh

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MX Hostnames

  • d308110b.ess.barracudanetworks.com
  • d308110a.ess.barracudanetworks.com

MX Priorities

  • d308110a.ess.barracudanetworks.com: 0
  • d308110b.ess.barracudanetworks.com: 10

A / AAAA Records

  • 144.208.76.23 (no PTR)

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 ns49.worldnic.com namehost.worldnic.com 126051909 10800 3600 604800 3600
Primary NS (mname)
ns49.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126051909
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns50.worldnic.com
ns49.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:zoho.com include:mailgun.org include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; pct=100; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✗ None detected

No 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

5 records
  • google-site-verification=UdfL311kQUEw0G9nLB5NQbM9h27ibsnDlltySwmivHs
  • cn4qd1i84tl9330gujf33q9jps
  • duo_sso_verification=NJZWUDIt0qQ2M79DkntVcSG1AGz63DNTx6drpcMqPhIkeyBWlPscfcZv8WZfKdhy
  • smtpcustomer. domainkey.D0MAIN.com
  • SPFv=spf1 include:zoho.com include:mailgun.org include:spf.ess.barracudanetworks.com ~all
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