Hello Guys!
I’m having a problem to configure the mail() function.
I followed this tutorial, but still i’m getting some errors.
http://ubuntu-for-humans.blogspot.com.br/2010/04/sending-emails-from-ubuntu-without.html

When I try to send an e-mail the SSH freeze for a few minutes and after display: “ssmtp: Cannot open smtp.gmail.com:587”.

I already configured the firewall to allow data through that port, but still I can’t connect.

sudo nano /var/log/mail.log
Feb 20 21:07:14 Estudar-Engenharia sSMTP[5013]: Unable to connect to “smtp.gmail.com” port 587.
Feb 20 21:07:14 Estudar-Engenharia sSMTP[5013]: Cannot open smtp.gmail.com:587