unixsis.com

Valid Email Server
Domain Lookup › unixsis.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
unixsis.com
Yes
✓ Yes
Zoho
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 22:06:13 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 138.59.73.99 (no PTR)
  • 2804:2258:c0de:2000::99 (no PTR)

Mail Server IPs

  • 136.143.183.44 ↩ mx3.zohomail.com
  • 136.143.191.44 ↩ mx2.zohomail.com

SOA Record

Raw SOA dns01.unixsis.net root.dns01.unixsis.net 2026022500 3600 600 1209600 3600
Primary NS (mname)
dns01.unixsis.net
Admin Email (rname)
root@dns01.unixsis.net
Serial
2026022500
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns2.unixsis.net
ns1.unixsis.net
dns01.unixsis.net

SPF Record

✓ Strict (-all)
v=spf1 a mx a:unixsis.com ip4:138.59.73.99 ip6:2804:2258:c0de:2000::99 include:zohomail.com include:_spf.google.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; ruf=mailto:[email protected]; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

3 records
  • zoho-verification=zb06014198.zmverify.zoho.com
  • google-site-verification=nU9yulXmnUlsde9yBvwK251ha6pvsBT5CRy6UYxyRIw
  • SPFv=spf1 a mx a:unixsis.com ip4:138.59.73.99 ip6:2804:2258:c0de:2000::99 include:zohomail.com include:_spf.google.com -all
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