Alert emails not being sent, while other emails are

Hi, I recently set up a self-hosted Sentry using the docker-compose method. Everything seems to work except for alert emails being sent. I’ve tried every possible setting from the UI, and I’ve already configured the smtp in config.yml. It sends all emails except for those for alerts. I’ve already managed to send out emails for invitations and I’ve tested it myself, so I’m not sure why these specific mails would not work. Thank you.