Which MTAs do you know which one to choose?

Question

Email

Preferably free for testing.
Should:
- Easy to maintain and configure
- Connect external smtp and work through them
- Need filtering by recipients, delicate setting of limits, and other MTA functions
- High performance
I am considering on the advice of the mailwizz developer - a free MTA Postal - for their joint bundle. But it is not so easy to configure, and it seems to me that it will not perform all my tasks.
What else are there?

Answer 1

mailwizz is not MTA but also with

Connect external smtp and work through them

true MTA are not very friendly
so mailwizz only