[Exim] logging...

Is there any way to have exim log, for each incoming SMTP connection,
the actual local interface address to which the connection was made?

I know I can log this in the system filter, but that only runs if a
message was accepted - I want to log even if there was a policy
rejection (eg, relay refused)..

This seems like something exim should be able to do, but after grepping
about I can't find the way. Anyone know if this is possible?

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