While debating how much time the downtime takes, which is completely worthless, I'd rather you skim through the specs of FreeBSD & Qmail if they exist. I'd also look for companies which provide installation and support of FreeBSD and consult them on subject of how much this installation could cost or something. I'd also look for successful projects with Qmail & FreeBSD.
I'd take into consideration the fact that UNIX-based solutions are far more lightweight than ones of MicroSoft so you have no idea of what you're talking about unless you managed one yourself. Before debating on how long 0.01% downtime is, I'd rather you consider other numbers which are of much more importance to you now.
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While debating how much time the downtime takes, which is completely worthless, I'd rather you skim through the specs of FreeBSD & Qmail if they exist. I'd also look for companies which provide installation and support of FreeBSD and consult them on subject of how much this installation could cost or something. I'd also look for successful projects with Qmail & FreeBSD.
I'd take into consideration the fact that UNIX-based solutions are far more lightweight than ones of MicroSoft so you have no idea of what you're talking about unless you managed one yourself. Before debating on how long 0.01% downtime is, I'd rather you consider other numbers which are of much more importance to you now.