I recently took over some old systems, including a VM running CentOS with EFA version 4.0.4. Unfortunately, the EFA project isn't under active development anymore. I attempted to set up a CentOS 9 VM with the last known good version of EFA but couldn't get it to work. Since I don't want to waste more time on this, I'm looking for a reliable and free alternative to EFA. There's an ancient Exchange server behind this EFA setup that's beyond my control, so I want to focus on what I can change. Any suggestions for alternatives?
3 Answers
You might want to check out Proxmox Mail Gateway. It’s a good free option if you don’t mind a little learning curve. Just a heads up, if you were open to paid solutions, Exchange Online Protection is pretty solid too, but I understand if you’re sticking with on-prem.
You could also explore SourceForge for some email spam filter options. There are several listed there, but I haven't actively used them recently. Check it out!
I've had some good experiences with Rspamd. It seems to be a solid option for filtering emails and can be a good alternative for what you're dealing with.
I'll definitely look into Proxmox! But yeah, that Exchange system is ancient and needs to stay as is.