contacts

flectar/mail

+126

Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 80 MB of RAM.

webmail

+65

Self-hosted JMAP webmail for Stalwart Mail Server. Mail, calendar, contacts, and files in one client.

telegram-mcp

+53

Telegram MCP server powered by Telethon to let MCP clients read chats, manage groups, and send/modify messages, media, contacts, and settings.

espocrm

+22

EspoCRM – Open Source CRM Application

SuiteCRM

+17

SuiteCRM - Open source CRM for the world

davx5-ose

+9

DAVx⁵ is an open-source CalDAV/CardDAV suite and sync app for Android. You can also access your online files (WebDAV) with it.

kurrier

+4

Kurrier is a modern, self-hosted workspace for email, calendar, contacts and storage.