its possible? write something in text field, write right email, one click and we send text like email to someone ?
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If you Google your question, you'll see it's generally not as simple as most people think.
It's possible someone could develop an SMTP plugin, but it would still require server-side knowledge.
If you want to email someone you have to go through a system that will allow you to.
JS as it stands doesn't allow you to. C2 doesn't either.
If you have a webserver with e-mail capability, you could use AJAX to send data to have the server do it.
There are a few tutorials showing accessing scripts to put stuff in a database, you could have it send mail instead.