Al, Once again I appreciate your assistance, but.... It has started working. I did go into the "ADC" and change some settings in the "Windows" tab. And continued with my testing. I don't know that this change made the difference, but.... Well, I have been part of this list for a couple of years now and have gained much insight into the way Exchange works. I thought this would be the place for informative answers to difficult questions, M$ was little to no help on this. Again this list is a valuable assistant and I will continue to watch. And maybe help with future questions, although I'm a little slow on the answers, the more seasoned users are always quicker on the draw than myself. Thanx again for the help. Bob