masterhalco.com

Valid Email Server
Domain Lookup › masterhalco.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
masterhalco.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 06:50:42 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • us-smtp-inbound-2.mimecast.com: 10
  • us-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 216.117.73.141 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns1.masterhalco.com dns.masterhalco.com 2007091382 3600 600 1209600 300
Primary NS (mname)
ns1.masterhalco.com
Admin Email (rname)
dns@masterhalco.com
Serial
2007091382
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns1.masterhalco.com
ns3.masterhalco.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:216.117.73.135 ip4:216.117.73.46 a include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.exclaimer.net include:out.rightsize.com include:5857154.spf06.hubspotemail.net ~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

✗ 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

17 records
  • duo_sso_verification=9HUYXFlB4wS5FWj0creUEt4coYbwpPvKo3fXqr9t8Uh1NT15kppB08fNCBMPBgbb
  • s9q5k9gid3vc2el27e0mo70b8p
  • aifgjhvri0fsbf3guel4hku6jk
  • bvpaeav0405p0jth30pdcshh7n
  • atlassian-domain-verification=nRgaAAZSSfNqalCKQXYPuWO85rt/GUE7LKQsYaVdiZfREHqkS5rHQUU9mZM48mck
  • SPFv=spf1 ip4:216.117.73.135 ip4:216.117.73.46 a include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.exclaimer.net include:out.rightsize.com include:5857154.spf06.hubspotemail.net ~all
  • globalsign-domain-verification=A83FBE7213B7EB2D4307BFC1A6616D2B
  • 1ighq2t06qimeip4kddhvi89ck
  • 6samg3s4n6pio13bemr5ug1vu0
  • kvvdm3ksquiqqi603dm75k05p3
  • guoodn6om60slgog3aqtef7cng
  • google-site-verification=oDIW6L5Hc8jCsuk4wr1TE7BmAQohtdtkyvJGuB0MgJ8
  • EdH5tzhyTrCl5pZhTINdj+5yDMIa49+HXrAr/ANuaEnQkJUHugJ+MEBsecneEJhtx4WIRh6O8fibwkrlpJ2adg==
  • box-domain-verification=a7ae7b7c3856e744dbe4548ea442f46da69d2b4d6e9790bca9b87a1792ebc902
  • dhnc87htnfh6c0p7jrg50mh19m
  • asv_domain=537d0c243a5718ae351526302a734d4c
  • infor-cloudsuite-domain-verification=CHDWME8YAE6PH226CGYBJLEJ7FC2XRFTGMJYXAQT6ANTR5W9WZ49JGN8PW6ZER37
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