Exim & Cyrus

I've added the following bit to the config file to use Cyrus as the
local delivery agent with Exim 1.59:

local_delivery:
    driver = pipe;
    command = "/usr/cyrus/bin/deliver ${local_part}",
    return_path_add,
    return_output,
    prefix = "",
    user = cyrus

This works ok, except when Cyrus returns a temporary failure
(EX_TEMPFAIL). It seems that Exim interprets all non-zero exit values as
permenant failures.


Tom