Hello,
we are encountering a problem where .pdf files are being removed from specific sender.
I have checked Attachment Filtering on Edge server and .pdf are not listed there (default settings) neither as files, extensions nor mime types.
My guess is that this specific sender uses some weird application to create pdf files and those get identified as some other MIME type on our edge therefore getting removed.
What can I do in this situation? Is there a way to check that .pdf file and how it is recognized by our edge server, or some other software which will try to tell me the MIME type of the file.