sierraelpaso.com

Valid Email Server
Domain Lookup › sierraelpaso.com

Domain Overview

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

Checked via [email protected] · 2026-03-25 04:49:02 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 104.17.90.30 (no PTR)

Mail Server IPs

  • 194.104.110.22 ↩ de-smtp-inbound-2.mimecast.com
  • 194.104.108.22 ↩ de-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA gordon.ns.cloudflare.com dns.cloudflare.com 2398088255 10000 2400 604800 1800
Primary NS (mname)
gordon.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398088255
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

gordon.ns.cloudflare.com
sue.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a ip4:216.253.11.116 ip4:99.32.9.81 ip4:208.185.140.98 include:de._netblocks.mimecast.com include:spf.protection.outlook.com ?all
📊 DNS lookups: 4/10
? Neutral (?all) — no enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

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

2 records
  • MS=ms47679363
  • SPFv=spf1 mx a ip4:216.253.11.116 ip4:99.32.9.81 ip4:208.185.140.98 include:de._netblocks.mimecast.com include:spf.protection.outlook.com ?all
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