There's been quite a discussion about setting up Redmine to use GMail's SMTP server for sending emails. I've seen this being a pain point for a lot of people so I've decided to write up a set of directions on how to get your Redmine setup to use GMail's SMTP. I've tested this process with Redmine 0.8.3, 0.8-stable, and trunk (r2670) using my personal GMail account. 1. Install the action_mailer_opt