[Dovecot] Getting rid of the common newbie problems

[Marc Perkel]

Timo,

In general, the better the docs are and the better the error messages 
are the less support they will need. If the log message said "Failure 
XXX, check YYY to see if it is set" giving the user as much help as 
possible. You could have a number of sanity checks at startup where 
dovecot checks out the environment verifying that directories exist and 
perhaps do some write testing to make sure areas that need to be 
writable actually are.