My QB Desktop Pro 2017 is setup to use Outlook and has no problems sending invoices with attachments if I send them one by one from the actual invoice screen. But if I mark the invoices as 'Email Later' and then use the 'Send Forms' feature to send them all as a batch, the invoices themselves are attached to the email as a PDF file, but any extra attachments are not included. I can preview the invoices in the 'Send Forms' box and can see that they each have an attachment, but when the emails are generated, only the invoice PDF is attached, not the other attachments.