[CentOS] Which is better? Microsoft Exchange 2016 or Linux-based SMTP Servers?

>
> > Still a lot better than trying to run your own hodge-podge of nightmares
> > on Linux.
>
> Beg pardon? Did I make a mistake on the email address? I thought this went
> to the CentOS general discussion list.
>

I specifically meant setting up and running email services on linux is not
for the feint of heart and delivers little real value considering the
plethora of free and commercial email services available.