That darn book!

Current email footer

In my email footer are links to my various websites. For the life of me, I cannot see why putting a link to the shared file of my free PDF book always included the file as an attachment as well!  

As this is a 12.8MB file some emails may reject it!  I searched the settings, but cannot see why it does this.

Instead, I have put a link to the book page on my website. So, clicking there is a link to the latest edition. This seems fine.

See https://sites.google.com/view/g3xbm4/book .