[Dovecot] Mailboxes separated from IMAP server

[Reindl Harald]

Am 21.10.2013 22:16, schrieb Reymer Antonio Vargas Solano:
> Thanks about the information, don't worry about the german.

interesting that you answered my links about shared and clustered storage
with "are you kidding me? Is not how or where to store the mailboxes"

well, remind me not try to answer your questions in the future

> On Mon, Oct 21, 2013 at 1:51 PM, Robert Schetterer <rs at sys4.de> wrote:
> 
> Am 21.10.2013 21:30, schrieb Reindl Harald:
>>>>
>>>> Am 21.10.2013 21:23, schrieb Reymer Antonio Vargas Solano:
>>>>> At my university we are trying to implement a distributed email
>>>>> backend, but I have some troubles,
>>>>>
>>>>> The topology:
>>>>>
>>>>> Server A: Postfix+LMTP # MTA Server B: Dovecot+LMTP # Just
>>>>> mailboxes Server C: Dovecot # POP3/IMAP
>>>>>
>>>>> Right now the Server A can leave a received email to the Server
>>>>> B, but I don't know how to communicate Server C to the Server B
>>>>> to retrieve the emails.
>>>>>
>>>>> I think that we should use IMAP protocol, but I am confused about
>>>>> how to connect them, I don't know if we have to use a proxy IMAP
>>>>> server, or another thing.
>>>>>
>>>>> Can anyone give me  an idea?
> 
> some more ideas , but based on another server setup/layout
> use loadbalancer to serveral mailservers ( postfix/dovecot/amavis )
> with shared storage ( gfs, nfs, ocfs2 , ceph ,drbd ) etc , shared
> ldap, sql auth backends etc
> 
> http://sys4.de/de/blog/2013/06/10/loadbalancing-mit-keepalived-postfix-dovecot/
> 
> http://sys4.de/de/blog/2013/06/06/postfix-dovecot-ceph-cluster-storage/
> 
> sorry only german
> 
> or
> 
> http://www.kutukupret.com/2011/06/19/postfix-realtime-maildir-replication-using-dual-primary-drbd-with-ocfs2/
> 
> there are a lot of chances how to solve it, deeply depends how many
> mailboxes inkl quota you want to goal, and how much traffic is
> awaited, and at the end what is your budget target.
> 
>>>>
>>>> http://en.wikipedia.org/wiki/Storage_area_network
>>>> http://en.wikipedia.org/wiki/Clustered_file_system

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