How To Get Email Original Sent With Smtp


I have an issue with certain domains for sending email (like order confirmation, registaration, pass recovery) configured to send via SMTP. The problem is that sent mails are recognized as spam when sent to hotmail/outlook addresses.

I know this is the problem of misconfiguration of spam filters on the hoster side email server. But the point is they need original of the sent email together with bounced email (that is not a problem). The question is how to get the original of the sent email since it is sent by script and no copy is saved on the store server (as far as I know). Also it is not available on the email hoster side in sent emails.

Any suggestions how to get it?