Yes I did, thanks for trying to help.
I do not know which settings i did changed, but looks like my Discourse instance sending mails where is replays e mail address are always same.
Fo far all emails I did get from my discource always using same replay e mail address.
So I do not have to configure anything special at my mail server (C panel).
I just open one email account and connect over POP3 to discource and it is working, no need to filter incoming emails.
On my old setup I did rute all “non matching” emails to same inbox, but my is discource did not changed setup since 2014 . Maybe Discourse has changed over the years, really do not know.