WSPR. A lot of stations from over the North Atlantic came in, visa versa. After a few hours I moved to the phone part of the band. But they are all shouting there, what a mess. So I switched to JT65. Now something strange happened.
LU1XU came back for me. Unfortunately, he could not hear my signal again for the second time, he answered in an email, so he replied on F4DJG. I think that F4DJG noticed that LU1XU was calling me... or not? Anyway, next time more luck.