Thanks for your reply, But I can't get this work. My email hosting provider is using version 100.0.7342.
I've set up the 'Subject Prefix' like this:
(You can see that I'm adding #Sender# to the Subject Prefix).
Yet when the list email is received (in Gmail in this case), it looks like this:
You can see that "#Sender#" is not replaced with the senders email address. I've tried sending the email from both the web interface and Outlook. It doesn't matter, in both cases the substitution does not happen.
I've contacted the email hosting company and they say that it appears that it doesn't work, yet you say that it does work... And I'm stuck in the middle.
Where do we go from here? Thanks for your time,