denvershowerdoor.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
denvershowerdoor.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 15:15:59 UTC · ↺ Refresh

MX Hostnames

  • SMTP.GOOGLE.com

MX Priorities

  • smtp.google.com: 10

A / AAAA Records

  • 66.37.157.10 ↩ cpanel10.firstlink.com

Mail Server IPs

  • 172.253.62.26 ↩ bc-in-f26.1e100.net
  • 172.253.62.27 ↩ bc-in-f27.1e100.net
  • 142.251.167.26 ↩ ww-in-f26.1e100.net
  • 142.251.167.27 ↩ ww-in-f27.1e100.net
  • 172.253.115.26 ↩ bg-in-f26.1e100.net
  • 2607:f8b0:4004:c1d::1a ↩ ww-in-f26.1e100.net
  • 2607:f8b0:4004:c1d::1b ↩ ww-in-f27.1e100.net
  • 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
  • 2607:f8b0:4004:c07::1a ↩ bc-in-f26.1e100.net

SOA Record

Raw SOA ns.firstlink.com hostmaster.firstlink.com 2025071701 10800 3600 604800 600
Primary NS (mname)
ns.firstlink.com
Admin Email (rname)
hostmaster@firstlink.com
Serial
2025071701
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns2.firstlink.com
ns3.firstlink.com
ns.firstlink.com
ns4.firstlink.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
google._domainkey
default._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

3 records
  • google-site-verification=R5Uf2osTI6OZmcsCSy_mJsQKHRbEpnlI25MvuSVeZ3Y
  • SPFv=spf1 include:_spf.google.com ~all
  • google-site-verification=pPi_XSGncjGpcl11j5yAm-0wYGyBzo5_xXKUsuQ0jfI
Full email verification for denvershowerdoor.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits