http://hhldo3tnt5solzj2bwfvh7xm4slk2forpjwjyemhcfrlob5gq75gioid.onion/en/index.html
The button to launch it will be in
the program's main menu, under "New" or something similar, titled something
like "Add account" or "New/Existing email account." The wizard can't find my account or isn't downloading my mail Before searching the Web, we recommend you start by asking other people
who use your email system, to figure out the correct settings.