Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dobbspeterbilt.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 12:25:56 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 1
- us-smtp-inbound-1.mimecast.com: 1
A / AAAA Records
- 104.17.90.30 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
hugh.ns.cloudflare.com dns.cloudflare.com 2398807873 10000 2400 604800 1800
Primary NS (mname)
hugh.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398807873
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
hugh.ns.cloudflare.com
tegan.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_u.dobbspeterbilt.com._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=50; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- SPFv=spf1 include:_u.dobbspeterbilt.com._spf.smart.ondmarc.com ~all
- viewsonic=tut85x4a
- 0ed1fe018a4e8e4665378c47359785801705b81fca
- E1zEzmANsyfK6J033VrU+5xLeaa39rbttLkXmn4+1wCqhHmw/RYJ9xyXFEcwI+XbGPuYYi2/h8Vib8M+cTM0gg==
- MS=E2D7E848067AAD3230AB0A300C6928A702D63F3E
- MS=ms88341539
- docusign=050acccd-2bf1-4f37-8f5b-a4e03d12b072
- duo_sso_verification=GQ7CVi4AFxFfhNCwd2OfR4oYPVaxkYenbMwFv7RErv1modTC9xU5jdSHnlOtEWlf
- knowbe4-site-verification=145837276328ebcf1c0f51f2cc33666f
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