SubsiMail documentation

Everything you need to install, connect, and run cold-email campaigns on your own server.

Install SubsiMail and finish the first-run setup.

Connect Gmail, Outlook, or any SMTP/IMAP inbox.

Import, create, and organize the people you email.

Build sequences, enroll lists, and track results.

See how your campaigns are performing.

Pipe campaign events into Zapier, Make, n8n, or your own service — and drive SubsiMail back with the REST API.

Invite teammates and set up roles.

Manage your license, domain, and billing.

Fix common connection and license problems.