Mail configuration is not working

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Mail configuration is not working.

$ ghost doctor

✔ Checking system Node.js version
✔ Checking logged in user
✔ Ensuring user is not logged in as ghost user
✔ Checking if logged in user is directory owner
✔ Checking current folder permissions
✔ Checking system compatibility
✔ Checking for a MySQL installation
+ sudo systemctl is-active ghost_quzz-net
Instance is currently running
ℹ Validating config [skipped]
✔ Checking folder permissions
✔ Checking file permissions
✔ Checking content folder ownership
✔ Checking memory availability
✔ Checking binary dependencies
✔ Checking free space

dursuncan@localhost:/var/www/ghost/content/logs$ cat https___quzz_net_production.log
 
{"name":"Log","hostname":"localhost","pid":3026,"level":30,"msg":"Ghost is running in production...","time":"2021-01-16T10:49:12.223Z","v":0}
{"name":"Log","hostname":"localhost","pid":3026,"level":30,"msg":"Your site is now available on https://quzz.net/","time":"2021-01-16T10:49:12.224Z","v":0}
{"name":"Log","hostname":"localhost","pid":3026,"level":30,"msg":"Ctrl+C to shut down","time":"2021-01-16T10:49:12.225Z","v":0}
{"name":"Log","hostname":"localhost","pid":3026,"level":30,"msg":"Ghost boot 5.159s","time":"2021-01-16T10:49:12.244Z","v":0}
{"name":"Log","hostname":"localhost","pid":3026,"level":30,"msg":"Bootstrap client was closed.","time":"2021-01-16T10:49:12.247Z","v":0}

dursuncan@localhost:/var/www/ghost$ cat config.production.json 

{
  "url": "https://quzz.net",
  "server": {
    "port": 2369,
    "host": "127.0.0.1"
  },
  "database": {
    "client": "mysql",
    "connection": {
      "host": "localhost",
      "user": "quzz_user",
      "password": "...",
      "database": "quzz_ghost"
    }
  },
  "mail": {
    "from": "admin@quzz.net",
    "transport": "SMTP",
    "options": {
      "host": "mail.quzz.net",
      "port": 465,
      "secureConnection": true,
      "auth": {
        "user": "admin@quzz.net",
        "pass": "..."
      }
    }
  },
  "logging": {
    "transports": [
      "file",
      "stdout"
    ]
  },
  "process": "systemd",
  "paths": {
    "contentPath": "/var/www/ghost/content"
  }
}

$ ghost version

Ghost-CLI version: 1.15.3
Ghost version: 3.40.5 (at /var/www/ghost)