Can't send email using email function in Google Cloud Platform

Question

In our organization, we have G-suite account with our domain, But while trying to send mails using those PHP code. Where the GCP is causing this mail failure. Kindly suggest how to resolve the issue.

Is there any issues due to the port blocking?

Answer 1

Here for sending the mail you need to enable port 25 with SMTP protocol or else you can also use different services in GCP to send mail. (services like GAE,GCE,GKE).

Where you will have the mail API, that will help you to send mails.

For more details, refer to the below tutorial on Google Cloud Training.