I created a dotnetnuke installation with only one portal.  Durring the instalation process and subsequent development I used my work email address for the admin email address.  When turning the site over to the client I changed all the admin email addresses to their email address.  Since then when a user is added to a new role, the "from" email address in the confirmation email sent to the user has the original (my work) address.  I assume this address must have been written to a resource file or a db record that I cannot locate.  I only discovered this issue when a user of the site emailed me with a question -- because the "from" email had my work address.

Thanks for any help in resolving this.

I checked the email and it is pointed the right location ( the clients email address).  Is there a cache variable assocaited with emails, or a database record written to when the portal is created I could look at.

I am not sure what you mean by "revalidate" the admin account?