istn.com

Valid Email Server
Domain Lookup › istn.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
istn.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 21:47:39 UTC · ↺ Refresh

MX Hostnames

  • istn-com.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 160.153.0.126

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns3.worldnic.com
ns4.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:amazonses.com include:spf.protection.outlook.com include:autotask.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

6 records
  • tmes=eb547f83bea7794cec862179542fe4f5
  • google-site-verification=UvG6AGOkbpK1teMwJZfNIccvC_4gmqwDg9sTltZABzc
  • apple-domain-verification=iPGYBETMuPNHL3Dr
  • BVQRL4VTPV._autotask.istn.com
  • C71472F7BE7091E71B2C08C79C0C6CB656B0942B497BC79A9E3C289B5093780C
  • SPFv=spf1 include:amazonses.com include:spf.protection.outlook.com include:autotask.net ~all
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