Sendmail still default?

[Les Mikesell]

Nicolas Mailhot wrote:
> 
> Le Dim 19 octobre 2008 16:47, Les Mikesell a écrit :
>> David Woodhouse wrote:
>>> On Fri, 2008-10-17 at 08:13 -0500, Les Mikesell wrote:
>>>>> Milter is supported by alternatives too
>>>> They pretend to, but won't actually run complex milters like
>>>> MimeDefang.
>>> Some of the better alternatives don't even _try_ to run milters,
>>> because
>>> they are fully-featured enough in their own right, without needing
>>> to
>>> rely on external software.
>> Which means that you can't run your choice of tests on a message
>> during
>> the smtp conversation before you accept it - at least without starting
>> a
>> new process for each one which is expensive for large programs like
>> spamassassin.
> 
> Actually, you don't need milters to do this in postfix (but you can
> use milters if you prefer)

If you do it without milters, can you get the efficiency factor that 
MimeDefang manages by unpacking the mime parts only once even if you do 
multiple scans for spam and viruses?  Can it multiplex a small number of 
milter backends doing 'slow' steps with a much larger number of mailers 
doing fast operations? (MimeDefang may be the only milter designed for 
that).

-- 
   Les Mikesell
    lesmikesell at gmail.com