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).