stackist.io

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
stackist.io
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-27 20:50:43 UTC · ↺ Refresh

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MX Hostnames

  • mail.protonmail.ch
  • mailsec.protonmail.ch

MX Priorities

  • mail.protonmail.ch: 10
  • mailsec.protonmail.ch: 20

A / AAAA Records

  • 172.67.211.114 (no PTR)
  • 104.21.77.201 (no PTR)
  • 2606:4700:3034::6815:4dc9 (no PTR)
  • 2606:4700:3031::ac43:d372 (no PTR)

Mail Server IPs

  • 176.119.200.128 ↩ mail.protonmail.ch
  • 185.205.70.128 ↩ mail.protonmail.ch
  • 185.70.42.128 ↩ mail.protonmail.ch
  • 185.205.70.129 ↩ mailsec.protonmail.ch
  • 176.119.200.129 ↩ mailsec.protonmail.ch
  • 185.70.42.129 ↩ mailsec.protonmail.ch

SOA Record

Raw SOA ara.ns.cloudflare.com dns.cloudflare.com 2410078463 10000 2400 604800 1800
Primary NS (mname)
ara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2410078463
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ara.ns.cloudflare.com
ethan.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.protonmail.ch mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100
✓ Reject — strongest protection
📋 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
  • stripe-verification=6a78a8a110140e54a184ae5165f8d22d1654e7b7b97e924f298bd86827946be9
  • SPFv=spf1 include:_spf.protonmail.ch mx ~all
  • protonmail-verification=f0eb5cd32dbe90b637e3df01b47e16353d8f1813
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