Having a few issues with recipients opening and downloading pdf attachments when on the move from Marketo emails, i.e. they cant open the documemnts, its doesnt render properly, especially on Blackberry. Does anyone have any advice or best practice on this one?
If the problem is the PDF, maybe the PDf was not optimized for web. If you are using a PDF of a document intended for printing, it is possible that the file is too heavy. Maybe the PDF has many graphics that have a very high resolution for prinitng. Try replacing the PDF for an optimized version.