It's best to use the secured SMTP protocol.
Like I tell everyone if your test at home use you internet providers SMTP mail.
I' am have Comcast ( Xfinity ) and I use their SMTP server for testing.
I just send the email through a loop back to my email address for checking.
What did you Try? What did you Get? What did you Expect?
Joined CodeIgniter Community 2009. ( Skype: insitfx )