I have a folder with various .tif files in it, all consisting of more than 1 page. I emailed 1 of these as an attachment & when the recipient opened it page 1 was ok but page 2 was page 1 of another file in the same folder, page 3 was page 1 of another different file in the same folder, page 4 etc etc. Any suggestions as to what might be happening.
Thanks in advance for your help.

Good lord... what kind of tif file are you sending? tif is usually kept for images in publications so cannot see how they would span several pages.

If you are attaching pages to an email, they can only receive what you send. It might be worth creating new zip folders for each page in a new directory/location and emailing again.