I installed Redmine 3.3.2 from Bitnami on Google Cloud, I also configured the sending of mails through mailgun following this instruction: https://cloud.google.com/compute/docs/tutorials/sending-mail/using-mailgun through Port 2525. I have updated the configuration.yml file and send a test mail from the Redmine admin panel, I receive the email immediately. Notifications are also sent correctly when I make changes to the Redmine settings.
However, when I update issues or assign an issue to a project member, or make any changes to the project that needs to be notified, the mail is not sent. I have reviewed many forums but I do not know what happens. Should I configure something in the crontab? I require an additional plugin?
Thanks for your help!