I created email from cyberpanel to my domain and it wouldnt work.
After lots of search i find that google cloud block 25 port for some reasons. For that my email in rainloop doesnt get mail or send mail.
I found that and did it:
basicly add 2525 port to smtp. http://prntscr.com/reat4d
listen 2525: http://prntscr.com/reauqi
Even so my mail didn't work. I run
# journalctl -f | grep postfix
and still using 25 port.
Thx for helping!