Inbound action does not process RE: and Watermark emails

[Jayson2]

Hi to all,

I created an email script that generates Approval and Rejection mail. However, when I try to reply back to our instance the email is not process as a reply type email. It is considered as "new". I included the "RE:" prefix and even added a watermark on the notification as I believe this is one of the conditions for processing inbound action. Am I missing other steps aside from this one?  We have existing inbound action but they are correc 

[Jaspal Singh]

Hi,

Can you check for the mail received and try to locate the inbound action processed for the mail. You can find that form the mail logs for each mail sent/received's related list.

[Jayson2]

hi Jaspal Singh, yes I did look on the email logs and I mostly the existing inbound actions are skipped. Here a sample log.