On Mon, 2 Oct 2006, W B Hacker wrote:

> *However* - as we presently use an unrelated authentication method, where and 
> at 
> what, should I look  - in an MUA (Moz/T-bird?) as well as Exim - to insure 
> that 
> I emulate whatever it is that this is intended to be used for?

The dovecot authenticator in Exim, rather like the cyrus-sasl 
authenticator, is really nothing more than a "middleman" between the 
client and the dovecot authentication daemon. Instead of Exim doing any 
authentication work, it passes on the client's input to Dovecot, and 
passes back the prompts (if any) to the client. Thus, it supports any 
authentication method that Dovecot supports (well, strictly, is 
configured to support). As this is a server authenticator only, there is 
no impact on clients. They just authenticate as they always did.

> - List of necessaries?

Running Dovecot, configured to authenticate somehow and with an external 
interface socket set up.

> - Sample authenticator code, anyone?

Here is what is in NewStuff, now that I've corrected it :-)

     dovecot_plain:
       driver = dovecot
       public_name = PLAIN
       server_name = /var/run/dovecot/auth-client
       server_setid = $auth1

     dovecot_ntlm:
       driver = dovecot
       public_name = NTLM
       server_name = /var/run/dovecot/auth-client
       server_setid = $auth1

-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book

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