You are right - Inbound and Outbound are different - and you're also right about the php exploit. I wasn't arguing that - merely clarifying my point about internet-bound mail (which it needed).
My request, which seems rather diluted by you now, was to see if there was any benefit in having the default mailbox a setting which gave it internal (local) mail only. This would prevent it from sending and receiving (inbound and outbound internet-bound email). I also made a comment further about how most of my clients don't use the default account either. I still see this as a fairly decent request.
By the way, the length of time you have spent "doing this" is irrelevant. I too have been working in the IT industry since 1988 (when I graduated) - and am continuously learning new things. The first mail server I worked on was an NCR Unix system. I never walk around thinking that I know more than somebody else purely because of time in industry.
My request, which seems rather diluted by you now, was to see if there was any benefit in having the default mailbox a setting which gave it internal (local) mail only. This would prevent it from sending and receiving (inbound and outbound internet-bound email). I also made a comment further about how most of my clients don't use the default account either. I still see this as a fairly decent request.
By the way, the length of time you have spent "doing this" is irrelevant. I too have been working in the IT industry since 1988 (when I graduated) - and am continuously learning new things. The first mail server I worked on was an NCR Unix system. I never walk around thinking that I know more than somebody else purely because of time in industry.