I wonder if there still is any limit on the number of PMs that I can have stored in my PM box? Since DP updated to their new layout, I do not see in my PM box anything that would tell me how many % my PM box is full.
I'm assuming there's still a limit in place, but that the layout hasn't yet had the counter/progress bar integrated, but I can't be sure. Likely it'll return as time passes.
You can have as many as you want, but they are automatically deleted after awhile (just like before).