In fact I was not and this solved it. I had Usermin 1.550. I am regularly upgrading...
It is Czech (CZ.UTF-8). See the screenshot for what I see.
I did not know, I have to escape the meta tag. This is the meta tag I found in the...
I did not know, I have to escape the meta tag. This is the meta tag I found in the...
Fixed us-ascii charset in meta tag in e-mail frame