Sending email with attachment and using 'recipient-filename'

Question

I am using message-send-and-exit (with mu4e) to send an email with an attachment. I would like to rename the file so that in the email it appears with a different name than my local file. According to the docs, I should be able to do that with recipient-filename. I also tried setting name.

<#part type="application/pdf" filename="old-name.pdf" recipient-filename="new-name.pdf" name="new-name.pdf" disposition=attachment>
<#/part>

However, upon testing, this doesn't seem to work. When I receive the email I get in the header

Content-Type: application/pdf; name="old-name.pdf"
Content-Description: old-name.pdf
Content-Disposition: attachment; filename="old-name.pdf"

What is the way to achieve this?

Answer 1

This seems to have been solved with this commit, but I think it has not yet been released.