Webhook: How to setup SMTP?

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Looks like a standard 30 second timeout.  Whatever your email server is running on, have the firewall rules been added to allow the traffic through on port 465?

Am I supposed to have port 465 exposed in Jellyfin's docker-compose? Below is my docker-compose for jellyfin. I still get the same issue of emails not sending out

Code:

  jellyfin:
    image: jellyfin/jellyfin
    container_name: jellyfin
    group_add:
      - "106"
    environment:
      - PUID=1000
      - PGID=100
      - TZ=America/Los_Angeles
    volumes:
      - ./jellyfin/config:/config
      - ./jellyfin/cache:/cache
      - /srv/dev-disk-by-uuid-XXXXXXXX/downloads:/14TB/downloads
      - /srv/dev-disk-by-uuid-YYYYYYYY/downloads:/8TB/downloads
      - /Music:/Music
    ports:
      - 8096:8096
      - 8920:8920
      - 465:465
    devices:
      - /dev/dri/renderD128:/dev/dri/renderD128
    restart: unless-stopped
    cpus: '4'
    mem_limit: 4g