mailrust

For hosting providers

More thanRoundcube.

mailrust connects to the mail server you already run. Your customers get a modern webmail, and the business tools become something you sell per mailbox: outreach, newsletters, deliverability, AI agents.

01Works today

Install itnext to your mail.

Your mail server

Any IMAP and SMTP server: Dovecot, Postfix, Exim, the panel's own. Nothing to migrate.

Gmail and Microsoft 365

Customers on Google or Microsoft connect with OAuth, no app passwords.

One binary per server

One command to install, HTTPS on its own or behind your proxy, signed updates.

An admin console

People and mailboxes, an audit log, retention rules, single sign-on and a switch for AI agents.

02In progress

Built forresellers.

Your brandIn progressYour logo, your colors and your domain on the client your customers see.
TenantsIn progressEach customer in its own space, invisible to the others, with its own administrators.
Sign in with the mailboxIn progressThe mailbox address and its password, no second account to create.
Panel modulesIn progressFastPanel first, then ISPmanager, cPanel, Plesk and DirectAdmin: a button in the panel opens the mail.
Provisioning APIIn progressCreate, suspend and remove mailboxes from your billing.

03Partner terms

Pay for whatyour customers use.

The webmail is free for every mailbox. The business tools are billed per active mailbox each month, at a wholesale price you resell with your margin. We are looking for the first hosting partners: the pilot is free.