Exim FAQ: Keyword-in-context index

Q0806: I'm using $domain as the	key for a lookup in a rewriting rule, but its contents are not being lowercased....
Q0435: My alias file contains fully qualified addresses as	keys, and some wildcard domains in the form @foo.bar. Can Exim handle these?...
Q9812: ... a single file using both single IP addresses and IP address blocks as	keys? I want to set `smtp_accept_max_per_host` by this means, and also include...
Q0614: ... me. These are forced down Exim's throat in one go. Exim spawns a lot of	kids, but is there some limit to the number of processes it creates?
Q0107: Exim fails to build, complaining about the absence of the	`killpg` function.
Q0060: ... failed to expand `/data/lists/lists/${lc` for require_files: `${lc` is not a	known operator for this setting:
Q0068: ... times out when trying to connect to some hosts, though those hosts are	known to be up and running. What's the problem?