Java 7 runtime support on App Engine standard was deprecated on December 13, 2017 and will be shut down entirely on January 16, 2019. It is replaced by the Java 8 Runtime Environment.

Samples for the Java 8 runtime can be found here.

This sample demonstrates how to use Mailjet on Google Managed VMs to send emails from a verified sender you own.

1. Before using, ensure the address you plan to send from has been verified in Mailjet.

$ export MAILJET_API_KEY=[your mailjet api key]
$ export MAILJET_SECRET_KEY=[your mailjet secret key]
$ mvn clean appengine:devserver

1. Edit the environment variables in the appengine-web.xml with the appropriate Mailjet values. $ mvn clean appengine:update