Milter-greylist

Oliver Fromme wrote:
> 
> 
> 
> AIDA Shinra wrote:
>  > Look at the default configuration:
>  >
>  > greylist 30m
>  > autowhite 1d
> 
> Uh, only 1d is the default for autowhite?
> That's pretty low.
> 
>  > Consider the following scenario:
>  > [...]
>  > If above scenario were repeated, the first email M1 whould not
>  > delivered and finally bounces to the sender. Lesson: autowhitelist
>  > should have enough long lifetime, for example 5 days.
> 
> That's true. The problem you described can happen if the
> "autowhite" value is shorter than the "timeout" value.
> I've set both to 5d and didn't have any problems.
> 
> The documentation should mention that the "autowhite"
> setting should be at least as long as the "timeout"
> setting (or longer, of course), and the default values
> should obey that.
> 
> Best regards
> Oliver

Computers are cleverer than mere mortals, so let milter-greylist do that 
consistency checking for us.

Milter-greylist should use max(specified_autowhite,timeout) as the 
autowhite value, put a warning message into the log, and continue.

Add documentation which states that that's how it will be, and it's 
goof-proof (well, at least consistent in a way which won't unnecessarily 
loose mails).

Phil