[Dovecot] Using Amazon S3 storage for Maildir ?

[William Blunn]

On 20/12/2011 05:29, Timo Sirainen wrote:
> On 19.12.2011, at 19.35, Forrest Aldrich wrote:
>
>> I wonder if anyone has tried using an IMAP server with Amazon S3 as a backend.   There would be many factors to consider (speed, etc).   However, moreso, I don't know that Maildir(++) would support multiple folders that might be linked into the cloud.  For example, higher-I/O local incoming mail is on disk, some folders archived on S3.   Could be easily done by simply creating another account and storing its Maildir in S3 --
> Maybe [sm]dbox with alt storage set to S3? http://wiki2.dovecot.org/MailboxFormat/dbox#Alternate_storage

Also consider using the S3QL ( http://code.google.com/p/s3ql/ ) 
filesystem, which stores files chunked on the backend (e.g. Amazon S3).

This ought to work well for dbox alternate storage, and archived mbox 
mail (though it may be worth arranging for indexes to be stored locally).

Bill