[exim] local process and local files

what is the differences between local process and
local files?

exim send emails to 3 destination: local file, local
process and remote server.

as what i know, local file is if exim send email to
something like /var/mail/user and remote server is if
exim make smtp connection to other server. but what is
local process?

thanks

Best Regards,
Markus


        
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