* Philip Hazel:
> I think it is clear that we need an overall timeout on the callout
> process. The question is whether
>
> (a) To invent a totally new parameter ("overall callout timeout");
> OR
> (b) The redefine the existing callout time to be an overall timeout as
> well as a timeout on individual connections and SMTP commands.
> OR
> (c) To take some multiple of the existing callout time (e.g. 4 times).
There's another option: callout is often used in contexts where Exim
has to reply to a client within a specific time interval. Maybe the
session timeout should be set to this amount of time (or three
quarters of it)?