I need some help with my emails

I cant send and receive emails .
I am using vultr cloud with PLESK but I cant use my emails . I cant send and receive emails.
I am getting such kind of errors in the maillog:
Please keep on mind that I have changed my domain with MYDOMAIN and my gmail with EMAIL for security reasons


Sep 1 06:27:22 bold-wozniak postfix/smtp[15736]: connect to alt1.gmail-smtp-in.l.google.com[142.250.4.27]:25: Connection timed out
Sep 1 06:27:22 bold-wozniak postfix/smtp[15736]: connect to...

I need some help with my emails