biotec.io

Valid Email Server
Domain Lookup › biotec.io

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
biotec.io
Yes
✓ Yes
Zoho
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 22:48:34 UTC · ↺ Refresh

MX Hostnames

  • mx2.zoho.com
  • mx3.zoho.com
  • mx.zoho.com

MX Priorities

  • mx.zoho.com: 10
  • mx2.zoho.com: 20
  • mx3.zoho.com: 50

A / AAAA Records

  • 74.208.236.57 ↩ 74-208-236-57.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::228 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0228.elastic-ssl.ui-r.com

Mail Server IPs

  • 136.143.191.44 ↩ mx3.zohomail.com
  • 136.143.183.44 ↩ mx3.zohomail.com

SOA Record

Raw SOA ns1094.ui-dns.org hostmaster.1und1.com 2017060109 28800 7200 604800 600
Primary NS (mname)
ns1094.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060109
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1094.ui-dns.org
ns1021.ui-dns.biz
ns1089.ui-dns.com
ns1095.ui-dns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:zoho.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

✓ 1 found
zoho._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: zoho

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:zoho.com ~all
  • facebook-domain-verification=d7kdjl56my677v9wnb2c3exxsx7hef
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