automatic helpers which really suck!

[Christian von Pentz]

[snip]
> If you are using an internal mail server of your University, and
> communicate over SSL, the issue could be similar to mine. You need to
> add the local CA authority certificate, before trying to add the account.

Same problem here, you can't add an account using SSL or similar with an 
self-signed certificate because Thunderbird will be stuck in an endless 
loop during the check.