mailbox.org

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mailbox.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 11:55:34 UTC · ↺ Refresh

MX Hostnames

  • mx3.mailbox.org
  • mx2.mailbox.org
  • mx-n.mailbox.org
  • mx1.mailbox.org

MX Priorities

  • mx3.mailbox.org: 20
  • mx1.mailbox.org: 10
  • mx-n.mailbox.org: 50
  • mx2.mailbox.org: 10

A / AAAA Records

  • 185.97.174.35 ↩ mailbox.org
  • 2001:67c:2050:b100:1:443::184 ↩ erlkoenigin.mailbox.org

Mail Server IPs

  • 80.241.60.216 ↩ mx3.mailbox.org
  • 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
  • 80.241.60.212 ↩ mx1.mailbox.org
  • 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org
  • 91.198.250.17 ↩ mx-n.mailbox.org
  • 2001:67c:2050:104::ffff:25:1 ↩ mx-n.mailbox.org
  • 80.241.60.215 ↩ mx2.mailbox.org
  • 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org

SOA Record

Raw SOA ns.jpberlin.de root.jpberlin.de 2014139015 40000 7200 604800 86400
Primary NS (mname)
ns.jpberlin.de
Admin Email (rname)
root@jpberlin.de
Serial
2014139015
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns2.jpberlin.de
dns3.cloudns.net
ns.jpberlin.de
ns3.jpberlin.de
dns4.cloudns.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:213.203.238.0/25 ip4:195.10.208.0/24 ip4:91.198.250.0/24 ip4:80.241.56.0/21 ip6:2001:67c:2050::/48 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; adkim=r; aspf=r; pct=100; rua=mailto:[email protected]; rf=afrf; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

6 records
  • mailru-verification: 0c2c482975b1fc2f
  • swisssign-check=1tuXIQOBa4NZh2EIQI5nFD8fbJW2EvxB6W8rYhAoQ5
  • have-i-been-pwned-verification=aa98600469e4f52f5b4c8e6952a0927d
  • google-site-verification=bCdtsEmyfsVIfzBgWZpEvCf3TeJgpw0f6x5miXGwakY
  • SPFv=spf1 ip4:213.203.238.0/25 ip4:195.10.208.0/24 ip4:91.198.250.0/24 ip4:80.241.56.0/21 ip6:2001:67c:2050::/48 mx ~all
  • google-site-verification=ojrG-cXIWNDWMmRomplDCsZknBUmg2PO32SffP1Xy2E
Full email verification for mailbox.org

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

SPF / DKIM / DMARC Get 1,000 Free Credits