Hello, I am trying to use gmailr package to send pdfs to my kindle via an R script. I can successfully attach pdfs and send them to email addresses using gmailapi but when I try to send an attachment to my kindle email address, Amazon replies that it does not see the attachment (even though I can see the attachment in the sent folder of gmail). It looks like the structure of the MIME message is different when I sent directly from gmail vs. when I send through gmailr using gmailapi. But I wasn't sure if that's the problem. Maybe this is an Amazon issue though. And I wasn't sure how to create a MWE for this! All the commands work fine, just that the attachment doesn't go through. Thank you!