Error, need help

I don't know what is this, please someone help me.

http://imageshack.com/a/img42/3389/btzz.png

it means just that. the email provider might have blocked you. It's a disposable email so you might want to get some other email account for your project...something more reliable.

No, the projects are made a few minutes ago so the emails cannot be blacklisted so fast. And also i'm not the only one that got this errors, i posted this problem on another forum and many users have tham. It's from the latest updates because i didn't had this until the latest updates.

no it's not from the latest update. The message is but if, than it didn't work in last version as well. Please check if that URL opens in your browser, if not, it's a ban on this provider.