istaff.io

Valid Email Server
Domain Lookup › istaff.io

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
istaff.io
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 10:58:05 UTC · ↺ Refresh

MX Hostnames

  • istaff.io
  • cpi.istaff.io

MX Priorities

  • cpi.istaff.io: 10
  • istaff.io: 10

A / AAAA Records

  • 194.195.210.21 ↩ 194-195-210-21.ip.linodeusercontent.com

Mail Server IPs

  • 194.195.210.21 ↩ 194-195-210-21.ip.linodeusercontent.com
  • 2600:3c02::f03c:93ff:fe71:330 (no PTR)

SOA Record

Raw SOA ns1.linode.com admin.istaff.io 2021000015 14400 14400 1209600 86400
Primary NS (mname)
ns1.linode.com
Admin Email (rname)
admin@istaff.io
Serial
2021000015
Refresh
14400s
Retry
14400s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns3.linode.com
ns1.linode.com
ns5.linode.com
ns4.linode.com
ns2.linode.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

1 record
  • "v=spf1 ip4:67.227.190.13 +a +mx ~all"
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