2021221.com

Valid Email Server
Domain Lookup › 2021221.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
2021221.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 03:12:11 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 3.33.130.190 ↩ a2aa9ff50de748dbe.awsglobalaccelerator.com
  • 15.197.148.33 ↩ a2aa9ff50de748dbe.awsglobalaccelerator.com

Mail Server IPs

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

SOA Record

Raw SOA ns25.domaincontrol.com dns.jomax.net 2023092000 28800 7200 604800 600
Primary NS (mname)
ns25.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2023092000
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns26.domaincontrol.com
ns25.domaincontrol.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

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 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

2 records
  • SPFv=spf1 include:_spf.protonmail.ch mx ~all
  • protonmail-verification=5663f0b5f330fe5c1688f2605327a92f7b763863
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