Attachment filename and contentType are removed upon normalization

[ericduvon]

Packages used: nodemailer-sendgrid v.1.0.3 nodemailer v.4.7.0

@andris9 I understand that this is setup such that all attachments are normalized to base64 strings.

The issue I am running into is that after this normalization happens, it removes the filename and contentType fields from the attachments, only returning the base64 string in the content field.

This causes SendGrid API to respond with this error message:

{ errors: 
  [ { message: 'The attachment filename parameter is required.',
      field: 'attachments.0.filename',
      help: 'http://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/errors.html#message.attachments.filename' } ] }

Do you have any feedback as to why filename and contentType aren't surviving the normalization?

Let me know if you need any additional info.

Thanks!