mtuinc.com

Valid Email Server
Domain Lookup › mtuinc.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
mtuinc.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 23:04:03 UTC · ↺ Refresh

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MX Hostnames

  • us-smtp-inbound-1.mimecast.com
  • us-smtp-inbound-2.mimecast.com

MX Priorities

  • us-smtp-inbound-1.mimecast.com: 5
  • us-smtp-inbound-2.mimecast.com: 5

A / AAAA Records

  • 204.74.99.100 ↩ crs.ultradns.net

Mail Server IPs

  • 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA dns1.p01.nsone.net hostmaster.nsone.net 1679350901 3600 600 604800 1800
Primary NS (mname)
dns1.p01.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1679350901
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

pdns77.ultradns.com
pdns77.ultradns.net
pdns77.ultradns.biz
pdns77.ultradns.org
dns1.p01.nsone.net
dns2.p01.nsone.net
dns3.p01.nsone.net
dns4.p01.nsone.net

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:47.19.109.0/24 ip4:208.215.188.0/24 ip4:161.38.251.0/24 ip4:20.80.224.36/30 ip4:13.82.15.120/31 ip4:52.147.202.188/32 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:service-now.com exists:%{i}.spf.hc6723-68.iphmx.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 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

6 records
  • MS=ms45682415
  • 1laopl8oda7vgarhenvku6u5r9
  • 0ed1fe018a59c93cc7a72e4380862083
  • google-site-verification=yNRNaouQe5p5QjRlupQY1csQH7xhLnQK6C37L_SP7Ds
  • 5qvn6alY6uOTHV6P5L2SuL0KGFBI7GW/LI2FILKfvCnJ25SgZpahQuopHpMT5a1nlJGkb4WPK36rp6J927zGgA==
  • SPFv=spf1 mx ip4:47.19.109.0/24 ip4:208.215.188.0/24 ip4:161.38.251.0/24 ip4:20.80.224.36/30 ip4:13.82.15.120/31 ip4:52.147.202.188/32 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:service-now.com exists:%{i}.spf.hc6723-68.iphmx.com ~all
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