Thanks for your help girls! I finally saw the message box thanks to Whereve's screen shot. I thought that was my outlook - I didn't realize it was part of Mercari's system. I think I finally got the Mercari thing working and I have to say - despite the reviews I've seen online - their customer service has really been awesome. They respond the next day and it is an intelligent response geared to my issue - not some canned reply. With my first sale, they just made my money available after they saw my own tracking showed a delivery and didn't make me wait for the buyer to rate me after I told them I couldn't message her. But now I know how to do that for next time. So I moved a bunch more things over from Ebay although I haven't sold anything else since that first week. Nothing sold on Ebay last month either though so ....