On 06/16/2011 07:54 PM, Pascal Gienger wrote: > Am 16.06.11 15:26, schrieb Ramprasad A.P: > >> Using outsourced mail is not possible > Amazon cloud *IS* outsourced mail, Amazon has access to your virtual > servers and it passes without VPN into their network. > But having a private server from vendor and running our software is different from using the vendors mail server Running hired servers was never considered a security issue. But handing over the mail app completely to a vendor seems a risk ( especially to my job :-) ) >> The biggest problem is harddisk space >> Every user is looking for huge amounts of diskspace even if I need >> 20GB per user I cant get so much disk space at affordable cost. > > 20K users with 20G each = 400 TB. With zfs compression perhaps 300 TB. > > How much does it cost to use 300T redundant fault-tolerant storage in an > Amazon Cloud? > They dont seem to offer 300T of storage , I tried the same with rackspace they too limit the maximum direct storage to around 600G per server ( Their cloud FS is much lower on I/O and wont fit the bill for a mail server ) > Google Mail does use your text patterns in your mail for advertising. > That's the way you're paying them. And they don't restore your mailbox > unless you use a business contract which means costs for each mailbox. > There's no such thing as a free lunch. > I think that is perfectly reasonable .. ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/