How soon can I delete files marked as spam?

I guess this a process question. I have messages marked as spam in my junk folder. I add a few that may gave been found in my inbox using “train as spam”.

How long do I need to leave them marked as spam in my junk folder to be recorded? Can I delete them immediately?


SpamSieve 3
Apple Mail on M2 MacBook Air
Sonoma 14.1

You can delete them whenever you want.

Thanks for the quick response!