I am searching a mailbox for the mail that first brought a specific attachment. Since the original mail, the attachment has been saved to associated Google Drive and likely been renamed too.
Since it has been renamed,
filename:CurrentFileName.pdf searches don't find my document under the filename I know. The only thing I can think of that is likely not to have changed is the file size (PDF files should not change size).
In short: It's easy to search the mailbox by email size (
size:) but what about attachment size? Is there a syntax like
Side note: a search by email size within a 5kB range around the file size found nothing, most probably because the original mail has several files attached.