[Dovecot] Postfix "userlookup" via Dovecot Auth

[Timo Sirainen]

On Tue, 2006-06-27 at 21:46 +0800, Timothy White wrote:
> I'm hoping to take advantage of authentication caching via
> dovecot-auth. I see that posfix can communicate with Dovecot-Auth, via
> SASL, but from what I can see, postfix only does this for
> authentication checks.
> Not 100% sure how postfix handles virtual_transport (I assume it needs
> to do a lookup via virtual_mailbox_maps), but I can't see anyway to
> get virtual_mailbox_maps to use dovecot-auth ether. I guess I may just
> have to get the virtual_mailbox_maps to look up userdata via SQL as
> well as Dovecot, but I was hoping to avoid what will be 3 similar
> lookups one after the other (dovecot-lda is in use as well).

For that I guess you'd need dovecot-auth dictionary backend for Postfix.
No-one's written that yet..

> My intended setup is "Postfix" -- LMTP --> "Dspam" -- DeliveryAgent
> --> "Dovecot-LDA", with each stage currently doing a SQL lookup for
> user information. It would be awesome if they all used SASl via
> Dovecot-Auth so that the Auth cache does it's job!

Unfortunately I've also in my TODO:

    - auth cache: cache userdb data too.

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