Mailbox Email Client Mailbox Email Client Mailbox Email Client Mailbox Email Client Mailbox Email Client
  • Mailbox Email Client
  • Mailbox Email Client
  • Mailbox Email Client
  • Mailbox Email Client
  • Mailbox Email Client

Single-server app license for the entire company with no in-app & user limits:

Basic Premium

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Synap

developer

February 20, 2026

latest release
version 1.0.7

Mailbox is an email client inside Webasyst

Mailbox lets you work with multiple mailboxes (IMAP/SMTP) directly in the Webasyst backend: process incoming email, search across conversations, handle attachments, configure rules, and keep your team workflow organized — without switching to external mail services.

Who it’s for

  • Support and Service teams — organize incoming mail by tabs/views, control access, and keep processing consistent.
  • Sales — quickly find threads, work in Split View, and handle invoices, quotes, and documents as attachments.
  • Operations — a single “company inbox” inside Webasyst instead of scattered personal mailboxes.

Key features

1) Multiple accounts, one workspace

  • Connect multiple mailboxes in a single interface.
  • Work with folders and business-oriented tabs/views.
  • Fast search across emails and conversations.

2) удобное чтение писем (включая Split View)

  • Split View: list on the left, selected email on the right — perfect for high-volume inbox processing.
  • Correct HTML email rendering and full message view on click.
  • Attachments are displayed and available for download and workflow use.

3) Rules and automation

  • Flexible rules to automate email processing (e.g., “if from X — move to view Y”).
  • Options like “stop after match” and scoping rules to a specific folder/account.

4) Tabs / Views

  • Use views to group mail by business logic (support, accounting, sales, etc.).
  • Quick switching between views.
  • Counters per view/folder to monitor workload.

5) Sharing and security

  • Share access to accounts/folders/views using flexible rules.
  • “Shared mailbox” mode and “not shared” mode — behavior depends on your settings.
  • When access is restricted by rules, users see only allowed emails (and can be limited to allowed views).

6) Plugins (extend Mailbox)

Mailbox supports plugins — additional actions and integrations directly in the email interface (including Split View):

  • Tasks Bridge — create tasks from email (integration with the “Tasks” app).
  • MailTemplates — quick email templates for replies.

Plugins are installed separately and appear as additional actions for each email.

Premium license

Mailbox includes a Premium mode (Webasyst license) that removes the free-version limits and is designed for team usage and scaling.

Setup

  • Connect an account via IMAP/SMTP (including Google OAuth support) and run synchronization.
  • Configure cron for background sync, processing, and rule execution.
  • Set up user rights and sharing rules for team workflows.

Note Mailbox is actively developed with focus on UI 1.3 + UI 2.0 compatibility, stable Split View behavior, and correct access restrictions.

Synap

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