Here are a few of the more useful options you can set in the
configuration file:
- message_size_limit
Setting this option limits the size of message that Exim will accept.
- return_size_limit
Setting this option limits the amount of an incoming message that Exim will
return as part of a bounce message.
- deliver_load_max
If the system load exceeds the value given for this option, all mail delivery
is suspended, though messages are still accepted.
- smtp_accept_max
This is the maximum number of simultaneous incoming SMTP calls Exim is prepared
to accept.
- log_level
This option controls the amount of material that is written to the log. There
are also some options with names beginning with log _ that
control the logging of specific information.
