“Download all as ZIP” doesn’t always include all files. Files with the same name are not necessary included.
Here is how to reproduce it.
- create a PDF called “test.pdf” and have the same file in several locations (different folders)on your hard drive
- attached multiple “test.pdf” files to one e-mail
- send it to yourself
- click the “Download all as ZIP” context menu link
- the Zip file only includes one “test.pdf”
There are several other ways to include the same file twice or more often to one e-mail and all files work and can be downloaded manually just not all together as a ZIP file
I think I reported this before, might have been with Zarafa back in the days but it just came up again that some files were “missing” for one of our users.