arnoldoil.com

Valid Email Server
Domain Lookup › arnoldoil.com

Domain Overview

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

Checked via [email protected] · 2026-03-24 20:38:12 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 209.126.25.149 ↩ cloudhost-5783193.us-midwest-1.nxcli.net

Mail Server IPs

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

SOA Record

Raw SOA dns1.registrar-servers.com hostmaster.registrar-servers.com 1765485356 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1765485356
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s

Nameservers (NS)

dns2.registrar-servers.com
dns1.registrar-servers.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:71.42.117.253 include:spf.protection.outlook.com include:us._netblocks.mimecast.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; sp=none; aspf=r; adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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

8 records
  • ec5hulk39umu9cjhrj07j7jjsm
  • 0ed1fe018ab6bab5ab815642219c505e2b04c953e4
  • apple-domain-verification=GT9FIE69keI2MRoP
  • MS=902F25A1D6352A4448A50B5FF880A14A4ADE0C07
  • google-site-verification=8Wg7jTVLc5SPX1lCPP-kwuBoqNKvbO2GoIp6ZWhgLW4
  • google-site-verification=OgkAwM6pHfsQW7a44HWALoNx5-era4-b6NJ1x98CNMM
  • SPFv=spf1 ip4:71.42.117.253 include:spf.protection.outlook.com include:us._netblocks.mimecast.com -all
  • MS=ms71731405
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