Your mail.
Your rules.
UltraMailbox is a private, self-hosted email service built for people who take their privacy seriously. No ads. No tracking. No compromises.
Built different.
By design.
Every aspect of UltraMailbox is controlled by us — from the server to the inbox.
End-to-End Privacy
No third parties. No data mining. Your emails stay on our server, under our control — not Big Tech's.
DKIM & SPF Secured
Full email authentication stack — DKIM, SPF, and DMARC — so your messages are trusted and verified.
Brute Force Protected
Automatic IP banning, rate limiting, and TLS-only connections keep attackers out.
Webmail Access
Access your inbox from any browser with Roundcube — clean, fast, and always available.
Any Mail Client
Works with Thunderbird, Apple Mail, Outlook, and any mobile mail app via IMAP and SMTP.
ultramailbox.pl
Your own domain. A real address that's yours — not a subdomain of someone else's empire.
Contact Us
Send a message
Having an issue or a question? Reach out and we'll get back to you as soon as possible.
Message sent!
We'll get back to you at your email address as soon as possible.
Or email directly: crazegi.contact@gmail.com