Email blocking from Google Cloud Platform and Plesk

I have installed a VM with ubuntu on google cloud platfor , I installed Plesk and I am having issues sending emails .

I can receive but I can't send. I have read the GCP locks ports 25 465 and 567 but I see that there is a filter that allows that.

Anyone had any experience in this to help me out?

Thank you in advance.

How many English words
do you know?
Test your English vocabulary size, and measure
how many words do you know
Online Test
Powered by Examplum