[Dovecot] xexec and dovecot 1.1

[Ed W]

>> For the 'Copy to Sent' function... if you sent a message somehow 
>> using the IMAP connection, maybe you could save the Client having to 
>> upload the same message AGAIN just to copy it to the Sent folder 
>> (think 10MB email sent over a 512Kb connection)...
>
> No need for a new extension, it's easier to make your MTA deliver a 
> copy of outgoing mail to the 'Sent' folder for those users that want it.
>


OK, I'm game.  Design this for me assuming Postfix + Dovecot.  Lets 
assume they are on different servers  just to examine the more general 
situation.  We can probably assume an authenticated sasl connection or 
else it becomes fairly intractable, but we have to assume that customers 
can choose their FROM address (for many setups the incoming connection 
might be both unauthenticated AND have random (even forged) FROM 
addresses...)

So what should the config look like?

Ed