I’ve got an Excel sheet working that will send you an email upon a cell value changing. Right now it requires a Gmail account. I’ll try to generalize it as much as I can. I plan on releasing it as a free tool when it’s done. Then you can use it in your own DDE spreadsheets. I will also incorporate it into the CAT tool for donors. And I will also update the ability to stream custom columns from TOS through DDE in all my tools, thanks to reader Allen, and put up a full tutorial to walk you through setting it up. No ETA, could be a couple of weeks.