idt.com

Valid Email Server
Domain Lookup › idt.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
idt.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-27 02:14:27 UTC · ↺ Refresh

MX Hostnames

  • mx4.idt.com
  • mx1.idt.com
  • mx2.idt.com

MX Priorities

  • mx1.idt.com: 10
  • mx2.idt.com: 20
  • mx4.idt.com: 40

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 157.165.5.28 (no PTR)
  • 157.165.5.27 (no PTR)

SOA Record

Raw SOA heidi.ns.cloudflare.com dns.cloudflare.com 2398406550 10000 2400 604800 1800
Primary NS (mname)
heidi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398406550
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

heidi.ns.cloudflare.com
joaquin.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:157.165.5.0/24 ip4:12.221.72.176/29 ip4:12.104.134.25 ip4:209.64.160.112/28 ip4:173.203.81.82 include:spf.mandrillapp.com include:coremoti ves.com include:docebosaas.com include:mktomail.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

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

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

All TXT Records

3 records
  • SPFv=spf1 mx ip4:157.165.5.0/24 ip4:12.221.72.176/29 ip4:12.104.134.25 ip4:209.64.160.112/28 ip4:173.203.81.82 include:spf.mandrillapp.com include:coremoti ves.com include:docebosaas.com include:mktomail.com include:spf.protection.outlook.com ~all
  • MS=ms69647875
  • fv1/ZyhKX1pXO8P8H/k7l3pOiS7NDl2picAyp/aF2g7tPVbPGLpcHy97gfHyfe9JKkkkyB2Gxo1Bg1LneoJgRg==
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