mimepostcard - Man Page
send/output a multipart/alternative message
mimepostcard /path/to/some/graphic.jpg email@example.com
You can point it at a .gif file as well. The special address "-" just causes the message to go to STDOUT.
This sends a mesasge both as HTML and plain text. I use "Data"; you would probably use "Path".
2023-01-20 perl v5.36.0 User Contributed Perl Documentation