ccalculo.com

Valid Email Server
Domain Lookup › ccalculo.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ccalculo.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 13:20:12 UTC · ↺ Refresh

MX Hostnames

  • mx01.1and1.mx
  • mx00.1and1.mx

MX Priorities

  • mx01.1and1.mx: 10
  • mx00.1and1.mx: 10

A / AAAA Records

  • 74.208.236.186 ↩ 74-208-236-186.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::29d ↩ 2607-f1c0-100f-f000-0000-0000-0000-029d.elastic-ssl.ui-r.com

Mail Server IPs

  • 74.208.5.21 ↩ mx01.perfora.net
  • 74.208.5.3 ↩ mx00.perfora.net

SOA Record

Raw SOA ns-mx.1and1-dns.mx hostmaster.1and1.com 2016102402 28800 7200 604800 300
Primary NS (mname)
ns-mx.1and1-dns.mx
Admin Email (rname)
hostmaster@1and1.com
Serial
2016102402
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns-mx.1and1-dns.org
ns-mx.1and1-dns.mx
ns-mx.1and1-dns.com
ns-mx.1and1-dns.biz

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf-us.ionos.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 include:_spf-us.ionos.com ~all
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