passinbox.com

Email Relay / Proxy
Domain Lookup › passinbox.com

Domain Overview

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

Checked via [email protected] · 2026-03-22 22:52:26 UTC · ↺ Refresh

MX Hostnames

  • mx2.simplelogin.co
  • mx1.simplelogin.co

MX Priorities

  • mx2.simplelogin.co: 20
  • mx1.simplelogin.co: 10

A / AAAA Records

  • 104.21.34.220 (no PTR)
  • 172.67.209.190 (no PTR)
  • 2606:4700:3031::ac43:d1be (no PTR)
  • 2606:4700:3037::6815:22dc (no PTR)

Mail Server IPs

  • 176.119.200.136 ↩ mx1.simplelogin.co
  • 185.205.70.136 ↩ mx2.simplelogin.co

SOA Record

Raw SOA kay.ns.cloudflare.com dns.cloudflare.com 2399338708 10000 2400 604800 1800
Primary NS (mname)
kay.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399338708
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

kay.ns.cloudflare.com
marek.ns.cloudflare.com

SPF Record

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

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

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

All TXT Records

1 record
  • SPFv=spf1 include:simplelogin.co ~all
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