rclb.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
rclb.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 10:38:09 UTC · ↺ Refresh

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MX Hostnames

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

  • 172.67.220.185
  • 104.21.45.236
  • 2606:4700:3030::6815:2dec
  • 2606:4700:3030::ac43:dcb9

Mail Server IPs

  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 172.253.157.26 ↩ yubrupd-in-f26.1e100.net
  • 2a00:1450:400c:c23::1a ↩ yubrupd-in-f26.1e100.net
  • 192.178.234.26 ↩ ncsclj-in-f26.1e100.net
  • 2800:3f0:4003:c14::1b (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 172.253.115.27 ↩ bg-in-f27.1e100.net
  • 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net

SOA Record

Raw SOA cortney.ns.cloudflare.com dns.cloudflare.com 2413478867 10000 2400 604800 1800
Primary NS (mname)
cortney.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2413478867
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

major.ns.cloudflare.com
cortney.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a:lyris.cib.net ip4:209.188.11.0/24 include:_spf.google.com include:spfus.rocketseed.com include:spf.mandrillapp.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • de85kgr5cpp8ju3r6pc9alu7ec
  • google-site-verification=9niqmsvrJ9IAYzKuHjv3ASR1muJVBeRDnZSU7cmMYfc
  • google-site-verification=YBseDZmN9fYsgcQ87-J16u5TXJ7qb1Q2e0buuH1AJMA
  • SPFv=spf1 a:lyris.cib.net ip4:209.188.11.0/24 include:_spf.google.com include:spfus.rocketseed.com include:spf.mandrillapp.com ~all
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