Ok, I have to get this off my chest because, 1) it drives me fracking bonkers everytime and see it and 2) I want a place I can point people at when they ask why this is a bad idea. What I’m talking about is the excessive number of HOWTOs that think it’s a good idea to use the same home directory for all virtual users. Most of these HOWTOs discuss using postfix with courier, but I have seen courier-mta HOWTOs that do this too.