Hello, I have a question I cannot see answered anywhere... Maybe it's there but at least I cannot find it :( We are using Zope as the application server for our cybercentre (we call this to our applications that allow people to send emails to heads of governments, CEO's and so on). It's running on a Linux machine. The MTA is postfix. The workflow is as follows: a user comes to the site and decides to take on to a cyberaction and mail his congresman because he (or she) is concerned about the governement actions on the Artic (to take an example), so this cyberactivist goes to a form were he/she fills in his/her email address and fills on the message, then submits the form. From our side we have a DTML method that uses dtml-sendmail to actually send the email. We need this email to display the FROM header as from the user that filled in the form, so we use to have something like this: <dtml-sendmail MailHost="<our mailhost>"> From: <dtml-var SenderFromForm> To: <dtml-var EmailOfYourCongresMan> ... and so on ... But the issue is if by any of this bad things of life, the email of the congresman is down the bounce will go the the cyberactivist email account (SenderFromForm)! That's really bad! So looking around I noticed that bounces go to the envelope-sender so we did: <dtml-sendmail MailHost="<our mailhost>"> From: <dtml-var OurBounceProcessingAccount> From: <dtml-var SenderFromForm> To: <dtml-var EmailOfYourCongresMan> ... and so on ... But we received a complain that all the emails are showing as coming from the OurBounceProcessingAccount email address. So the question is: how are we suppose to set the envelope-sender and not display the OurBounceProcessingAccount email address in the header of the email using dtml-sendmail? Or is it a postfix issue? Thanks in advance... /B Bruno Mattarollo <bruno@dynamic.greenpeace.org> Systems Administrator Greenpeace International [ http://www.greenpeace.org/ ] --- Unix: You think it won't work, but if you find the right wizard, he can make it. Macintosh: You think it will work, but it won't. PC/Windows: You think it won't work, and it won't. Basta de Contaminacion! http://www.bastadecontaminacion.org/