With eM Client 8 you can now search not just for messages that have an attachment, but you can also search based on the attachment name and inside the attachment body.

You can search for and inside specific attachments both in Mail and All Attachments sections of the app.

AttachmentName and AttachmentContent keywords have been added to the search in the Mail section of the program, so you can now look for words directly contained in the attachments.

In the new Attachments view you can easily sift through the files directly - you can sort through files based on type, account or the item type it was originally attached to.