Ralph Seichter:
> * Wietse Venema:
>
> >> Would that not cause a prohibitively large number of open connections
> >> between Postfix's smtp and the sleeping proxy?
> >
> > Limited by the (master.cf) per-delivery-transport process limit,
> > and the (main.cf) per-delivery-transport concurrency limits.
>
> I have written and tested a prototype based on your suggestions, which
> uses goroutines to proxy and delay individual connections. The results
> look promising so far. I hope that I will get the go-ahead to test this
> in an environment with a message load closer to production conditions
> over the next week.
>
> One question arose: Postfix documentation [1] mentions that milter
> header cheks allow "content inspection of message headers that are
> produced by Milter applications". Does Postfix keep a record of headers
> which have been added during milter calls, and if so, can the list of
> added headers be accessed and/or logged?
There is no such thing.
When a Milter asks Postfix to add a header to the message, then
Postfix runs that header through milter_header_checks before updating
the queue file (or taking some other action as specified in the
milter_header_checks result).
Wietse
