[horde] Horde technical prerequisites

[Arminas]

Hi,

I was looking on all lost of docs and googling, but I wasnt able to
find any information about technical prerequisites. So what's about
it? And what stats are needed to detect needed resources? F.e. I would
like to ask how much RAM and swap and processors is needed for about
50 000 users. Is this number enough for detecting?

Would be great if anyone could give me a link or just post a message,
Thanks,
Arminas