@olasia: Yes, the site https://mm.gmx.net/ works fine now again with Opera Mini, thanks.

@olasia: No, unfortunately on my Java Opera Mini 4.4, the page https://mm.gmx.net is still not loadable. Same error message as before.

@olasia: Yes, when trying to reach my mail account https://mm.gmx.net with Opera Mini 4.4, I get in the error message the text "Secure connection: fatal error (50) https://mm.gmx.net/login Transmission failure."

I cannot reach my mail account https://mm.gmx.net on my mobile phone via Opera Mini 4.4. All other browsers on desktop PC's do not have any problems with this web site. For me it is a serious problem, because I cannot reach e-mails via my mobile phone anymore. Why does Opera Mini 4.4 have now constantly problems with this web site? This problem exists approximately since two weeks. Can you please urgently help?