App Engine standard environment Javafeature
Support for migrating from the legacy Mail API to an SMTP-based email service, such as SendGrid, Mailgun, or Mailjet is...
Support for <a href="https://docs.cloud.google.com/appengine/migration-center/standard/java/mail-to-smtp">migrating from the legacy Mail API to an SMTP-based email service</a>, such as SendGrid,…