How to attach blob file into HTML href=“mailto:”

Question

I have a file available through an URL (need authorization). I created a mailto: link and would like to attach this file in the mail. How can I do that ?

Something like

Answer 1

mailto: doesn't support attachments, but there are various ways you could achieve a similar effect:

1. Link to the file in a message body

   You mentioned that the link needs authorisation, you could generate temporary urls that last 30 minutes (or more/less) which allow for downloads (users can then attach the file themselves)

2. Send the email yourself

   Your service could send an email to your user (or on behalf of your user) with the attachment using something like Amazon SES, or Mailchimp, etc...

3. Render your PDF into HTML

   It seems you are planning on attaching PDF files. Depending on the complexity of the PDF files, you could attempt to convert the PDF into email-friendly HTML using one of many tools, such as pdf2htmlEX or Pandoc.