mastermuffler.net

Valid Email Server
Domain Lookup › mastermuffler.net

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mastermuffler.net
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 13:37:06 UTC · ↺ Refresh

MX Hostnames

  • alt4.aspmx.l.google.com
  • aspmx.l.google.com
  • mx07.register.com
  • alt2.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt1.aspmx.l.google.com

MX Priorities

  • aspmx.l.google.com: 1
  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5
  • alt4.aspmx.l.google.com: 10
  • alt3.aspmx.l.google.com: 10
  • mx07.register.com: 10

A / AAAA Records

  • 209.17.116.163

Mail Server IPs

  • 172.253.63.27 ↩ bi-in-f27.1e100.net
  • 2607:f8b0:4004:c25::1a ↩ yuiadtq-in-f26.1e100.net
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net

SOA Record

Raw SOA dns101.register.com root.register.com 125031303 10800 3600 604800 3600
Primary NS (mname)
dns101.register.com
Admin Email (rname)
root@register.com
Serial
125031303
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns101.register.com
dns102.register.com

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:50.87.221.44 +ip4:67.222.36.21 +include:infusionmail.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

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

All TXT Records

6 records
  • SPFv=spf1 +a +mx +ip4:50.87.221.44 +ip4:67.222.36.21 +include:infusionmail.com -all
  • google-site-verification=oL3JDFVluZHLBSyPwXW6lAS_XOJaLWPQLZ5TTQwWWjY
  • SPFv=spf1 mx include:infusionmail.com include:_spf.google.com include:spf.sendinblue.com ~all
  • Sendinblue-code:d10e64a91389de9bf786df6484e27f70
  • MS=CC84D2572E5C83E4B64D7D085B547DD95A7F57C6
  • SPFv=spf1 include:spf.registeredsite.com -all
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