instasign.com

Valid Email Server
Domain Lookup › instasign.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
instasign.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 04:54:02 UTC · ↺ Refresh

MX Hostnames

  • smtp.secureserver.net
  • instasign-com.mail.protection.outlook.com
  • mailstore1.secureserver.net

MX Priorities

  • instasign-com.mail.protection.outlook.com: 0
  • smtp.secureserver.net: 0
  • mailstore1.secureserver.net: 10

A / AAAA Records

  • 216.150.1.1

Mail Server IPs

  • 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 216.69.141.71 ↩ osplibsmtp01-v01.prod.phx3.secureserver.net
  • 216.69.141.113 ↩ osplibsmtp03-v01.prod.phx3.secureserver.net
  • 216.69.141.84
  • 216.69.141.78
  • 216.69.141.114
  • 216.69.141.162

SOA Record

Raw SOA kia.ns.cloudflare.com dns.cloudflare.com 2399279954 10000 2400 604800 1800
Primary NS (mname)
kia.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399279954
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

phil.ns.cloudflare.com
kia.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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

2 records
  • SPFv=spf1 include:secureserver.net -all
  • google-site-verification=ChVP05FUA7XzK6ZYPjF2e3EhQJXHiYpGNCsnH4dr0Sw
Full email verification for instasign.com

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