When mails are generated from CRM using t-code CRMD_ORDER ,in scenarios like sales order creation, etc.,smart form output are generated and E-mail sent as a PDF attachment to the partner's email ID containing the smart form output.
But at present this PDF attachment is treated as SPAM by spam scan software and it's dropped by the mail server.
After some diagnosis , we found that any mail which has an attachment and no content in the body of the mail, is treated as spam and being dropped.
All the mails are generated through customized action profile.
Now we need to add some content to the body of the mail to overcome this problem.