Email "from" does not work

[GovSat1]

It seems that email "from" is not getting set properly?

Smtp config appears correct at startup

timeoff   | get_send_email:  true
timeoff   | Using SMTP for email delivery
timeoff   | smtp_config: {"host":"mail.smtp2go.com","port":"2525","from":"aaa <xxx@abc.com>","requireTLS":false,"auth":{"user":"xxx","pass":"xxx","required":true}}

But fails when trying to send out

response: '550 to send email from a blank sender, enable blank senders',
  responseCode: 550,
  command: 'RCPT TO',
  rejected: [ 'xxx' ],
  rejectedErrors: [
    Error: Recipient command failed: 550 to send email from a blank sender, enable blank senders
        at SMTPConnection._formatError (/app/node_modules/nodemailer/lib/smtp-connection/index.js:807:19)
        at SMTPConnection._actionRCPT (/app/node_modules/nodemailer/lib/smtp-connection/index.js:1662:24)
        at SMTPConnection.<anonymous> (/app/node_modules/nodemailer/lib/smtp-connection/index.js:1629:30)
        at SMTPConnection._processResponse (/app/node_modules/nodemailer/lib/smtp-connection/index.js:991:20)
        at SMTPConnection._onData (/app/node_modules/nodemailer/lib/smtp-connection/index.js:772:14)
        at SMTPConnection._onSocketData (/app/node_modules/nodemailer/lib/smtp-connection/index.js:195:44)
        at TLSSocket.emit (node:events:517:28)
        at addChunk (node:internal/streams/readable:368:12)
        at readableAddChunk (node:internal/streams/readable:341:9)
        at Readable.push (node:internal/streams/readable:278:10)
        at TLSWrap.onStreamRead (node:internal/stream_base_commons:190:23) {
      code: 'EENVELOPE',
      response: '550 to send email from a blank sender, enable blank senders',
      responseCode: 550,
      command: 'RCPT TO',
      recipient: 'xxx'
    }
  ]

I also had to add the SEND_EMAIL env variable to the docker compose file as it's missing from the one in the repo and thus not enabled by default.

I tried to debug further but not sure exactly where app.json comes into play with your fork?