oyster.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
oyster.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-27 09:05:02 UTC · ↺ Refresh

MX Hostnames

  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt4.aspmx.l.google.com

MX Priorities

  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1

A / AAAA Records

  • 104.18.6.59
  • 104.18.7.59

Mail Server IPs

  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 142.251.167.26 ↩ ww-in-f26.1e100.net
  • 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net

SOA Record

Raw SOA keaton.ns.cloudflare.com dns.cloudflare.com 2400058213 10000 2400 604800 1800
Primary NS (mname)
keaton.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400058213
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

keaton.ns.cloudflare.com
vivienne.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx include:_spf.smartertravel.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

12 records
  • oqumji89ehpqcna6lgugqhho9a
  • spf2.0/pra include:_spf.google.com ~all
  • SPFv=spf1 mx include:_spf.smartertravel.com ~all
  • yahoo-verification-key=f6VzRKxlZ6BAKwv/jroMWZYqTwicAKgZ4JF1v6ub0Ws=
  • MS=ms39473902
  • facebook-domain-verification=338ozy8lxhbvjgjmcqihobyoyrocny
  • google-site-verification=1QjsBRiaWYHVu-eyYTDI5y79VOV_C7yoh7E78ZLYRoQ
  • google-site-verification=KqXdwIKPRl5cAbfJiqNhg931j2uS3Vc1-SECIzkNKh8
  • google-site-verification=Suq4_PrxfhC0flNg1djvEfSEN11isGo0LS4ZuelUt60
  • google-site-verification=YCfyXZQ2NVfGGmjNrYKS7_Iv2PzD90MMA-kHSNdSM00
  • google-site-verification=lyCwiZG1OZb8lT-wXXnZfqyCZ7T7mURSTN3RqZDrI0w
  • google-site-verification=oEtf-tBQl7ptUnoDERJ_jrshFLn89GjTz1BymV8XRdo
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