I've just installed the brand new Wordpress Beta for Google Cloud Launcher. Currently, I'm unable to send mail via Contact Form 7 and invites for things like new users via Wordpress admin. The funny thing is that I'm not getting any errors in console and the Contact 7 form doesn't show any failure.
Will I have to go the SMTP route with this? Is there anyone else who has had this issue with the new GCP Wordpress?
I ended up using a plugin for Wordpress that uses SMTP called Easy WP SMTP https://wordpress.org/plugins/easy-wp-smtp/.
I configured it to use smtp.google.com and a dummy account I made for the purpose of sending mail from Wordpress.