2 Diff Type of Attachments in Mail

Hi,

My requirement is to attach two files:

1. Image (JPEG) file - HEX

2. PDF file

and send these attachments via mail.

I am using FM 'SO_NEW_DOCUMENT_ATT_SEND_API1'

I am using,

contents_bin  to attach PDF file

contents_txt to mention mail body

contents_hex to attach Image file.

But when i use all three parameters i am not able to view image in attachment whereas when i comment contents_txt i am able to view image.

What is wrong here i am not able to understand.

I want both mail body and both the attachments.

How can i achieve this using above FM, please suggest.