not the first time i have huge problems with deleted inbox-messages from webmailbox of my provider. thats why the bat had been installed. but i did not disable webbased connection. sending mail from websites activated thunderbird not the bat.
1. i do not know where i can activate this in the bat.
2. after deinstalling thunderbird strange things happen when sending mail from websites: multiple ie-windows will open with mailto:mymailadress in the browser. i can only logout the account to close these windows.