Always Learning wrote:
If I had to read a book in order to install and configure postfix I would go back to sendmail.
Try EXIM - it worked for me almost out-of-the-box with very minimal configuration. Since then I have introduced lots of extra refinements to successfully keep spam out without using third party faciliti
I should have said, perhaps, that shorewall is working perfectly for me, under both CentOS-6 and CentOS-7. I run amavis under CentOS-6 to incorporate spamassassin and clamav. However, amavisd-new wasn't available when I installed CentOS-7 - I know it is available now - so I went on a strange journey using dovecot-pigeonhole and sieve, which I would not recommend to anyone.
No one really wants to revert to Sendmail - do they ?
It worked fine for me for years - what do you have against it?
When I started using it, before sendmail.mc was introduced, I found it even more difficult to configure than postfix today.