[Dovecot] dovecot as gmail imap proxy

[Timo Sirainen]

On Jun 17, 2008, at 6:14 PM, Timo Sirainen wrote:

> On Jun 17, 2008, at 6:03 PM, Farkas Levente wrote:
>
>> would it be possible to create a dovecot server as an imap proxy  
>> for gmail and google apps?
>> imho many people/company would be love to use such a setup where he  
>> can use gmail in vacation or any other time, but when the email is  
>> real critical apps (not acceptable to wait 1 minutes for an email  
>> to load or to open a folder/label) than he can use a proxy server  
>> eg. dovecot which act as a imap proxy to gmail and can be hosted on  
>> closer, faster server and this speed problem never happend. what's  
>> more it can be used as a mail backup server too.
>
> I've thought about a caching IMAP mail storage backend for Dovecot  
> and even started implementing it once, but it didn't get very far.  
> If someone wants to try to continue it, I can send what I've written  
> so far. Although it's mostly a copy of cydir backend with a tiny bit  
> of it replaced with IMAP code.

Now that I think of it, the IMAP backend should do only direct IMAP  
backend accessing and if caching is wanted it could be a generic  
middle layer. Might be also useful for other things like caching mails  
from NFS server. Although Linux already has a cachefs for that.
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