[Dovecot] Multiple locations, 2 servers - planning questions...

[Charles Marcus]

On 2012-02-27 1:34 PM, Sven Hartge <sven at svenhartge.de> wrote:
> Charles Marcus<CMarcus at media-brokers.com>  wrote:
>> Each location is an entire floor of a 6 story building. The remote
>> location has the capacity for about 60 users, the new location about
>> 100. We only allow IMAP access to email, so if everyone is using email
>> at the same time, that would be a lot of traffic over a single Gb link
>> I think...

> Naa, most clients download mails only once and then keep them cached
> locally (at least Thunderbird and Outlook do).
>
> Looking at the used bandwidth of the mailserver of my small university
> (10.000 users, about 1000 concurrently active during the daytime)
> shows a steady amount of roughly 5MBit/s with peaks to 10MBit/s in and
> out.

Interesting - thanks for the numbers...

But, again, my main reason for 2 servers is not performance, it is for 
redundancy...

-- 

Best regards,

Charles