Communication & Email OSS tools — 4 tracked with release & CVE alerts

freescout Healthy open source

FreeScout — Free self-hosted help desk & shared mailbox (Zendesk / Help Scout alternative)

friendica At Risk open source

Friendica Communications Platform

cypht At Risk open source

Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)

movim Healthy open source

Movim - Decentralized social platform

Tools