Authentication Error

Giganews Newsgroups
Subject: Authentication Error
Posted by:  Mike B (mike54…
Date: Tue, 13 Jan 2004

Using Delphi 5 with Indy 8.0.22.  I have a user getting the following error
when trying to send an email using authentication:
"client doesn't have permission to send as this sender      error  454.7.3"

Any hints to what is happening.  User says their username and password are