earlier when we were storing draft without any reference, it was working fine

store-draft.ts

   'From: ' + this.emailProvider.email,
          'To: ' + data.to,
          'Subject: ' + data.subject,
          'Date: ' + date,
          'Content-Type: multipart/alternative; boundary="boundary"',
          'MIME-Version: 1.0',
          '',
          '--boundary',
          'Content-Type: text/plain; charset=utf-8',
          'Content-Transfer-Encoding: 7bit',
          '',
          body,
          '',
          '--boundary',
          'Content-Type: text/html; charset=utf-8',
          'Content-Transfer-Encoding: 7bit',
          '',
          htmlBody,
          '',
          '--boundary--',