Tracking emails (like an e-ticket system)

[ruski]

Hello friends,

 

Once again I need a bit of advice on a project of mine.

I am currently building a e-ticket type of system where a person can send an email via php to another person. Before the email is sent, it records the sending of that email in a database, so for example by its message_id header.

When the user which received the email replies and the initial person receives the email, I want to be able to tell which email record in the database that the email was replied to.

 

Now i have considered the possibility assigning each email a message id, referencing the email record by it and then reading the in_return_to email head in the replied email, but it seems to be that in some emails the initial message ID is lost. The could be to numerous factors, one being that the recepient could have forwarder the email to another email address before replying etc...

 

Therefore I am looking for an alternative solution or maybe an enhanced idea to what I already have.

 

Any help would be great!

 

Thanks in advance