rbexpresstx.com

Valid Email Server
Domain Lookup › rbexpresstx.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
rbexpresstx.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 07:41:46 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 35.212.121.33

Mail Server IPs

  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 142.251.179.26 ↩ pd-in-f26.1e100.net
  • 2607:f8b0:4004:c07::1a ↩ bc-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net

SOA Record

Raw SOA ns1.siteground.net admins.siteground.com 160 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
admins@siteground.com
Serial
160
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns1.siteground.net
ns2.siteground.net

SPF Record

✓ Soft Fail (~all)
v=spf1 +ip4:35.212.21.53 +a include:_spf.google.com +mx include:rbexpresstx.com.spf.auto.dnssmarthost.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; aspf=r; adkim=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ 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

3 records
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4Ym963BJSY/yl56XVE9XvHDY/rGFIv41AobwkLbJwJ+7YDS/+dygx04/JJSopfU6ABkfeIp9PQCCmK2ZHd8LKDlegSBvGmVRND/DioGuE5YRpV3fRfYae84HIMFQXoOeocAVR9o9GT6E1aS4wksMYnKz/HfgpJlCU1PQ90JkzS2h9A+KsSNhSbzSqszhEm5a3i7Xnl2uEa0u0JVyNn5vSOK76xss7MRB31sbXIjP/GtZ7Ttk7Uf0HilNZeOcFOt354teRo8RFVJEi4oGadipBp4v8GjGFtVEvMHs1vOkiqyLc030t3NETkXvxUPEn+7ZfBSx/da9Xjtdkq0zmXT84wIDAQAB
  • SPFv=spf1 +ip4:35.212.21.53 +a include:_spf.google.com +mx include:rbexpresstx.com.spf.auto.dnssmarthost.net ~all
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAh1BFvSDGHbeHGkh5HUEbJFlUYVt0jLTIurYEcTj/oxV4ONSyuRU9YXCSjvB3DobG9cvjVq8nxT1Av6KIUxf7Znmf7rac9AZKdw3E9VjrJCigGWxBFZ8m3mNy76fu80I+pOcYh+VWyAURq652cJAcqZu3GWAlVi+164tU29h/gvWhI5bj4BWWWVIiJZYqpxni651PHYw8K0e8vbX63P/poBQJAMme7bD4adFIzpfLvqHgww1TSxWh41Fop2pcsSOhz8y9Rc1uiwNdk0xMHcg/Z9wyKFm2vpS8Ik7H1W2H8l0WLYxi9h31KCPxDZA7zEckWdUujlmLYlev/sFSrNzToQIDAQAB
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