Re: [exim] using exim with ironport preprocessor

I don't think this condition does what you think

condition = "${if eq {$received_protocol}{local} {1}{0}}"

the documentation of $received_protocol isn't totally clear to me, but it seems clear that if your local sender connects using smtp, then $received_protocol will be some variant of "smtp". I would guess that your condition matches for use of the LMTP protocol.

I believe you need something more like
hosts = 127.0.0.1 : 10.20.30.40

where 10.20.30.40 is the ip of your local host.

Neil Youngman