Can you set/alter the reply to address from within the xslt?
No, sorry, currently it uses the reply to address setup in SharePoint.
ok...it seems that it is using the farm reply to instead of the web application reply to...??? ...setting the reply to for each web app would be good
We use the SPUtility.SendMail function to send email, and it uses the Central Admin Outgoing Email Settings.
Please raise this as an issue in the issue tracker, and i'll consider it for a future release. Could you also please post a link in this discussion to the Issue in Issue Tracker.
The Reply To address can now be customized in Release 1.0.3