os error 11

Hello, First post, and relatively new Proxmox (8.3.5) user. I've been trying to overcome a problem with email notifications and could use some advice. I'm having a recurring issue with the SMTP-based notifications that were successfully set up in the GUI at DataCenter->Notifications. I did not...

I recently sat down to finally fix email notifications. SMTP is the way I usually do such things, and I was happy to see it as an option in the gui. However I cant get it to work, even though I believe I have set things up correctly I only get the following error (and no emails): Could not test...