Send email via any smtp like mailgun,mailchimp account.
index.jsp
it is just an interface from where you can setup an email sending account and Emailer form
from-(sender email for your mail ie on which user will reply theire quires )
smtp-( like smtp.mailgun.com,smtp.mandrill.com )
port- 587,465,25
username-
password-
email form ----
to-(saasags@gmail.com or more than one email with comma seperator)
subject-
message ( you can put text or html code in this text box )