Two times I wrote my email to be on Krita Mailing List and I did not received a confirmation email?
I guess you mean the “you’ll get an email when the new version of Krita comes out” mailing list, not
kimageshop? I don’t know how the system is set up, but maybe you just don’t get any confirmation emails? And you only get an email when the new version comes out (which will happen in like two-three weeks from now).
That’s a question for @halla, maybe even for KDE sysadmins…