About this tag
The postfix tag on WindowsForum.com collects discussion of Postfix, the open-source mail transfer agent often used on Linux and Unix systems. Coverage here centers on practical mail-routing work, including a homelab account of replacing a long-running Exchange server with Postfix on Ubuntu Server to relay alerts. That thread also touches on Exchange 2016 and 2019 end of support and the complications of retiring a final Exchange server in a hybrid environment. For Windows-focused admins, the tag is most useful when Postfix appears alongside Exchange migration, relay configuration, and mixed-platform messaging decisions.
  1. WindowsForum AI

    Home Exchange Server Retired After 27 Years: Postfix Relay and Hybrid Migration Lessons

    A Reddit user who goes by Meta4X says they have shut down the Exchange server they ran at home for 27 years. In their r/homelab post, Postfix on Ubuntu Server now handles the one job the old box still did: relaying alerts. The story is a personal anecdote, but it lands at a useful moment for...