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Sandy Drobic wrote:
> G T Smith wrote:
>> Cyrus has it own mailbox and account structure (it is effectively a mail
>> black box with mail stored in a database). I think you need create the
>> appropriate cyrus mailbox so that delivery can take place. All postfix
>> bit is point postfix delivery to the cyrus mail system. It does not
>> really need postfix as it has its own MTA and MDA agents.
> 
> A good part of this is at least a bit misleading. (^-^)
> I hope you don't mind if I expand a bit on your comment.
> 
> Cyrus does indeed not use maildir to store mails, though it may look the
> same at first glance. Instead the mails are stored in folders and a few
> databases are maintaining the structure and status flags. So the mails are
> NOT stored in a database, but the status of the mails is (mailboxes.db,
> seen.db, deliver.db etc.).
> 
> The valid mailboxes are maintained in mailboxes.db. Before a mailbox can
> be used it must be created. This can be done in cyradm or by scripts that
> use similar funktions. Both php and perl provide modules where the
> neccessary functions are available.
> 
> Postfix does indeed not deliver the mail itself, lmtp is used either
> directly or through a pipe transport (in Postfix the transport is called
> "cyrus" in master.cf) using the deliver binary from Cyrus. In the end, it
> is the same since deliver will also use lmtp to submit the mail to Cyrus.
> 
> So the delivery is not done by the Postfix local delivery agent (either
> "local" or "virtual").
> 
> But Cyrus is a pure imap server, it does not speak smtp, so a MTA (mail
> transfer agent) like Postfix, Exim or Sendmail is neccessary. Maybe you
> mistook it for Courier. There are two packages available: courier-imap,
> the imapserver, and courier-mta, the mailserver package.

Lifted of Mullet & Mullet - Managing IMAP - Part III - p107..p108 . read
this thing when establishing which version of IMAP to run with... Took
one look at Cyrus decided was not a runner...
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