RabbitMQ
github.comRoute application messages through queues so publishers and background workers can operate independently.
Route application messages through queues so publishers and background workers can operate independently.
Flat-rate team chat for small businesses with channels and unlimited message history.
Coordinate team work in workspace channels and direct messages within the Ubirimi suite.
Email delivery with message tracking and bounce controls
Manage corporate messaging with group chats, offline delivery, and centrally administered message archives.
Message colleagues in direct chats and channels with searchable history, mentions, and file sharing.
Directional audience evidence from Human Digital Twins
Test email and SMS workflows by routing app-generated messages to controllable inboxes and numbers.
Self-hosted newsletter campaigns with project workspaces and a draft-message queue
Self-hosted email delivery with per-server queues, retention and message investigation
A Korean workplace messenger with channels, threads, translation, and timed message deletion.
Run standalone team chat or connect conversations with Toolscase time tracking.
Run self-hosted office chat with group discussions, message synchronization, and screen sharing.
A maintained Thunderbird fork with encrypted-message search
Application email with distinct transactional and broadcast message streams
Mailing-list administration with separate owner, moderator and service roles
Define structured messages in `.proto` files and generate language-specific serialization code.
Forwarding aliases that stop after a chosen message count
Transactional email and campaigns with separate content and metadata retention settings
Inspect a sample message for deliverability problems
Swiss domain email with administration and protected-message options
Protected email with recipient access and expiration controls
Search 1,900+ emojis by meaning, copy them, or turn text and photos into custom emojis.
Web search with a documented no-search-history policy