How can i block email domains

HY, i have users or bots, they use trashmailer accounts and will spam all over my site..

I will block this domains, but i dont know who.

Please help,

hello? Nobody here?

i must ever 10 min delete a spamming bot... how can i stop it...???????

Enable Captcha and Email confrmation for any new join user. About email confirmation instructions you will find a very recent post here in foruns.

Is your site for Germany only? Are your spammers from outside? Block the countries IP range or, if on dedicated, use ISO Alpha2 codes to block the country from your server.

Regards

Thx for your reply.

My Site is in german and english. Captcha and email confirmation is enable. But i become spam over the contact.php too.

Or a real User, use trash-mail.com, this user will never coming back, its a dead user profile.

I have use the DNS block, and block the country (China) and country's Russian, japan, Korea,... too. But,

It is definitive a bot, my piwik dont register the spammer, but when i follow the ip of the spamming member, i see, this is a china ip.