summitracing.com

Valid Email Server
Domain Lookup › summitracing.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 17:49:35 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • us-smtp-inbound-1.mimecast.com: 10
  • us-smtp-inbound-2.mimecast.com: 20

A / AAAA Records

  • 45.60.251.79 (no PTR)
  • 45.60.241.79 (no PTR)

Mail Server IPs

  • 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-1.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 cbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 242 86400 10000 604800 86400
Primary NS (mname)
cbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
242
Refresh
86400s
Retry
10000s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

cbru.br.ns.els-gms.att.net
cmtu.mt.ns.els-gms.att.net

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:12.176.129.247 ip4:12.176.129.246 include:us._netblocks.mimecast.com include:usb._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 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

18 records
  • saXQxyfpbHJT2afaY7QRiJ22P1ha9cO5Gm8kCCn9a93TEutVUZK7Yfm3KoXkjRZqhRTe0BJ0qMMXCuSYrUUyUw==
  • d365mktkey=QIbLmE4QKnCQcxzAWVHAGHefW8VxcbZRE6GI2bvfwbYx
  • apple-domain-verification=X6wCgndm6zkvWhkh
  • q598rtlb32rmd0cln5bk478cbpt13z9q
  • globalsign-domain-verification=F8CEF61CE23D97304B14EBAECAF48B60
  • google-site-verification=9ZsdONNwaiLXS_RjdoCLeuNX3TY7ROdpPOTWQb6FOpI
  • docusign=9af16e76-2771-4fe1-87e3-69d584825c70
  • globalsign-domain-verification=59AF08E1ADB25EFF63056A03ED11ABD0
  • MS=AF1EA27FE3577C5AFED82CB339747DF66373BCBE
  • adobe-idp-site-verification=3ef8ea38a4ce25921e14e48a18e9efa0604cdd8ff848474cb631814c9cfa5145
  • SPFv=spf1 mx ip4:12.176.129.247 ip4:12.176.129.246 include:us._netblocks.mimecast.com include:usb._netblocks.mimecast.com include:spf.protection.outlook.com -all
  • d365mktkey=WqkyvYqmCD1dXKUxoT9tghMhnMX8zUtqBhZy9PUxD4Ax
  • _nalnb4pw9wkpi6c7kbr7bj4z1ttjgng
  • docusign=55f32e3c-df87-430b-95f3-dff013d27e5d
  • jamf-site-verification=v0QRdSD4xe94wHN_LMcLKQ
  • 4tx1phft0s166hhmbw7lmwvs84mk4kg7
  • msfpkey=26l3883ul52wkye98ttkdh5j2
  • t7z9mgkt6fl901ygf7bzjjzy1919315h
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