bluewin, thunderbird imap/pop does not work anymore

Since yesterday night I can not configure an email account in Thunderbird anymore.

There is always a wrong password but I can login through the web interface.

Webinterface - I can only login on the swisscom login, not on the bluewin login.

What happended here and how can I resolve this.

Thanks,

Mike

Don't use the Swisscom login use the mail password.

If I use the mail password it says wrong username/password -

I already ordered a new one - same behaviour.

Since yesterday it worked -

Which username/password should I use in Thunderbird for accessing the imap server?

Maybe there is a blacklist of IP addresses?

Thanks!

Mike