Re: [exim] Exim and Postfix

On 28/08/2019 03:10, Eliza via Exim-users wrote:
> Is exim a multi-processes MTA while postfix is a threads powered MTA?
> what's the main difference between these two?

The major portion of Exim is a monolithic program, but
it forks processes for message-handling. So while not
being either a set of programs (Postfix-architecture)
nor being a threaded process (in the sense of there
being a process with multiple threads-of-control)
there is work being done in parallel.

There are a few ancillary programs for maintenance
actions and ease-of-use too, but they are not
really part of the MTA.
--
Cheers,
Jeremy