Hello hope you guys doing well, For the last 3 days, I am trying to fix the issue with my VPS server it did not send any emails from the server to the user mail address. I am new to server management. hope you guys help me with something.
Looks like your problem is that Google Cloud blocks email sending by default on port 25. You need a smart host to fix this. Read the articles below for further information:
https://support.cpanel.net/hc/en-us/articles/360041074753-Why-is-port-25-blocked- https://support.cpanel.net/hc/en-us/articles/360053203653