I had used emoji in some of my label names—all valid Unicode code points—and it broke Sparrow hard (to the point where even preferences would self-dismiss on clicking an icon). It took about six weeks to get to the point where the "unusual" Unicode characters were the problem.
It's a nice email client, but I don't find it that much better than the native gmail email interface that I use most of the time.
I had used emoji in some of my label names—all valid Unicode code points—and it broke Sparrow hard (to the point where even preferences would self-dismiss on clicking an icon). It took about six weeks to get to the point where the "unusual" Unicode characters were the problem.
It's a nice email client, but I don't find it that much better than the native gmail email interface that I use most of the time.