[Dovecot] SASL using different auth database?

[Justin McAleer]

Timo Sirainen wrote:
> On Thu, 2007-05-10 at 20:57 -0400, Dave McGuire wrote:
>   
>>    The goal here is to allow users to have different passwords for  
>> SMTP authentication and POP/IMAP connections.  I am converting an  
>> existing installation to Dovecot...this installation currently has  
>> quite a few users who are configured with SMTP authentication (Cyrus  
>> SASL/saslauthdb) using different passwords than are configured for  
>> their POP connections (via cucipop, /etc/passwd).  If someone can  
>> think of any better way to accomplish this goal, I'm all ears.
>>     
>
> Currently you'd have to run two Dovecots to be able to do this. If you
> do that, set a different base_dir for them and that should be enough.
>
> I'll try to make this work with one dovecot-auth for Dovecot v2.0.
>
>   

If you can assign two IPs to the server, one for SMTP, and one for 
POP/IMAP, and you can use a SQL backend, you could craft your db schema 
and queries to pull the appropriate password based on the local IP of 
the connection. I know this isn't exactly what you were looking for, but 
I figured I would throw it out there anyway.